what is 15×86 2/3 please answer asap I need help

Answers

Answer 1
its 1,290.666666666667, i may be wrong but i typed it in the calculator.
Answer 2
The answer to your question is 1300

Related Questions

Wyatt says that both red lines are lines of symmetry. Is he correct? Why or why not?

Answers

Answer:

Step-by-step explanation:

There is only one line of symmetry:

because the one that is vertical is not representing symmetry.

Martin wants to join a book club to get discount books. Store A charges a joining fee of $75 plus $10 per book. Store B does not have a joining fee and charges $15 per book. What is the greatest number of books Martin can buy so that the total cost at Store A is less than the total cost at Store B?

Answers

Step-by-step explanation:

cost at store A :

cost(b) = 10b + 75

cost at store B :

cosr(b) = 15b

b = the number of books bought.

to answer the question find for what b both functions deliver the same result :

10b + 75 = 15b

75 = 5b

b = 15

when buying the 15th book both costs are the same.

to keep the costs of store A truly less than the costs of store B the limit is therefore 14 books.

In the diagram below of triangle
F
G
H
FGH,
I
I is the midpoint of
F
H

FH
and
J
J is the midpoint of
G
H

GH
. If m

H
F
G
=
57

6
x
∠HFG=57−6x, and m

H
I
J
=

4
x
+
49
∠HIJ=−4x+49, what is the measure of

H
I
J
∠HIJ

Answers

Applying the corresponding angles theorem, the measure of ∠HIJ = 33°.

What is the Corresponding Angles Theorem?

If two triangles are similar to each other, their corresponding angles would be equal. Also, based on the corresponding angles theorem, corresponding angles are equal to each other.

Triangles IHJ and FGH are similar to each other, therefore, angles HFG and HIJ are corresponding angles.

Therefore:

The measure of angle HFG = the measure of angle HIJ

m∠HFG = 57 − 6x

m∠HIJ = −4x + 49

Thus:

57 − 6x = -4x + 49

Combine like terms

4x - 6x = -57 + 49

-2x = -8

Divide both sides by -2

-2x/-2 = -8/-2

x = 4

m∠HIJ = −4x + 49 = -4(4) + 49

m∠HIJ = 33°

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Complete Question:

In the diagram below of triangle FGH, I is the midpoint of FH and J is the midpoint of GH. If m∠HFG = 57 − 6x, and m∠HIJ = −4x + 49, what is the measure of ∠HIJ?

Please help F(-1/2)=1 and f(0)=-4

Answers

Question:

Write a linear function f with f (- 1/2) = 1 and f (0) = -4

The linear function f with f (- 1/2) = 1 and f (0) = -4 would be ; y = -5x -4.

What is a linear equation?

A linear equation is an equation in which each term has at max one degree. Linear equations in variables x and y can be written in the form

y = mx + c

Linear equation with two variables, when graphed on the cartesian plane with axes of those variables, give a straight line.

We are asked to write the linear function f with f (- 1/2) = 1 and f (0) = -4

Let the equation in variables x and y can be written in the form y = mx + c

So f (- 1/2) = 1

this gives, 1 = -1/2m+c      -----------eq 1

Also f (0) = -4

This gives -4 = c.            --------------eq2

Now Putting the value of c in the equation in eq1 we get m=0.

So 1 = -1/2m+c  

1 = -1/2m - 4

m = -5

Then we get;

y = -5x -4.

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The width of a rectangle is 7x - 1 feet and the length is 2x + 10 feet. Find the perimeter of the rectangle.

Answers

Answer:

18x +18

Step-by-step explanation:

We know the opposite sides of a rectangle are always equal, so all you need to do is double both sides and add them together.

(7x-1) + (7x-1) + (2x+10) + (2x+10) = 18x +18

to find the perimeter you do 2lx2w= 2(7x—1= 14x-2
then 2(2x+10)=4x+20
add them together
18x+18 is the awenser

If a gallon of paint costs $18 and covers 180 ft²,
how much does it cost to paint a 900 ft² wall

Answers

Okay with this problem you just divide 900/180 to figure out how many gallons of paint are needed and then multiply it by $18
900/180=5
5•$18=$90
So the answer is $90

Answer:

$90

Step-by-step explanation:

180x5 equal 00

$18x5 equals $90

Point B' is the image of point B after a reflection in a line. Write an equation of the line.
B(2, -4), B'(6, -4)

Answers

Answer:

x = 4

Step-by-step explanation:

the united nations stores data about the kilowatt-hours of wind power produced around the world. the following data set gives information of the united states for 25 years, from 1990 to 2014, in units of million kilowatt-hours. using a calculator or statistical software, find the linear equation of the first 11 years of data, from 1990 to 2000. round the slope to two decimal places and the y-intercept to the nearest whole number. provide your answer below:

Answers

The value that the linear equation predicts for the year 2001 is 4652.15

The discrepancy between the actual and anticipated value is 2173.85

Given data;

Here, we present the dataset from the United Nations, which contains information on the number of kilowatt-hours of wind energy generated globally. The data set provides statistics on the US for 25 years, from 1990 to 2014, in millions of kilowatt-hours.

The linear equation for the first 11 years of data, from 1990 to 2000, must be determined.

To determine how much the actual value and anticipated value for the year 2001 differ in Quantity, we must first forecast the value for the year 2001 using our fitted equation with y-intercept.

It will be written as y = m(x) + c.

where,

The dependent variable is y. (in our example is quantity)

The independent variable is x. (in our example is the year)

'm' is equal to the slope of the variable X.

'C' is a constant.

The fitted equation is provided as follows:

Quantity = 186.87 (year) - 369274.72

Now that the value for the year 2001 has been provided,

Quantity = -1868.87 -369274.72 

Quantity = 4652.15

The value that the linear equation predicts for the year 2001 is 4652.15.

The precise figure for 2001 is 6806.

For the year 2001, the discrepancy between the actual and anticipated values is

6806 - 4652.15 = 2173.85

The distinction is 2173.85.

(2173.85/6806)*100 is the percentage difference.

As a result, the difference between the actual value and the forecasted value for the year 2001 is 31.94%.

Hence,

The value that the linear equation predicts for the year 2001 is 4652.15

The discrepancy between the actual and anticipated value is 2173.85

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What is the answer to 4r - 9r - 11r + 7r

Answers

Answer:

-11r

Step-by-step explanation:

4r - 9r = -5r

-5r - 11r = -16r

-16r + 7r = -11r

4r - 9r - 11r + 7r
= (+4r - 9r) - 11r + 7r
= (-5r) - 11r + 7r
= (-5r - 11r) + 7r
= (-15r) + 7r
= (-15r + 7r)
= -8r

A student assigns a random number from 1 to 13 to simulate the value of a card drawn at random from a standard deck of playing cards. A. The simulation should model the real situation. B. The simulation might not model the real situation. The deck may not be shuffled, in which case the real situation may not be random C. The simulation will not model the real situation. The simulation must also account for the cards suit D. The simulation will not model the real situation. The simulation sould use random nubmers from 1 to 12

Answers

To simulate the value of a card drawn at random, then option A. the simulation should model the real situation.

The likelihood that something will happen is what is commonly referred to as probability. When we don't know how something will turn out, we can talk about the possibility of a few outcomes or the probability of one. A probability distribution's effect on events is the subject of statistics. Probability theory is the name of the branch of mathematics that studies probability. The concept of probability, which has many different interpretations, is formalized by probability theory through a set of axioms. The term "simple probability" refers to the process of calculating a result or the probability that an event will ever occur. By dividing one possible event by all other possible outcomes, a basic probability can be calculated.

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What is the answer to this question

Answers

Answer:

soda: 97

Hot dogs: 56

Step-by-step explanation:

S-sodas

H- hot dogs

S+H=153

41+H=S

Substitute equation

(41+H)+H=153

41+2H=153

-41.        -41

2H=112

/2.   /2
H=56

S+56=153

 -56.  -56

S=97

Hopes this helps please mark brainliest

38. The manufacturing cost for a certain automobile is n dollars. The manufacturer
sells the car to a retailer at 5 percent more than cost. If the retailer sells the car to a
consumer for 10 percent more than he paid for it, how many dollars does the car
cost the consumer?
(A)1.050n
(D)1.515n
(B)1. 150n
(E)1.555n
(C)1. 155n

Answers

Answer:

C) 1.155n

Step-by-step explanation:

Cost price is n.

Add 5%

n + 5% = n + 0.05n = 1.05n

Now add 10%

1.05n + 10% = 1.05n + 0.1*1.05n = 1.05n + 0.105n = 1.155n

Correct choice is C.

find the middle side of each triangle. round your answers to the nearest tenth if necessary.

Answers

Step-by-step explanation:

using Pythagoras theorem.

37,

x² = 6² + 8²

x = √6²+8² = 10ft

38.

13²=12²+x²

169 = 144 + x²

√169 - 144 = x = 5cm

hope it helps. :)

Answer:

x = 10 and x = 5

Step-by-step explanation:

using Pythagoras' identity

the square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

(36)

x² = 6² + 8² = 36 + 64 = 100 ( take square root of both sides )

x = [tex]\sqrt{100}[/tex] = 10

(38)

13² = x² + 12²

169 = x² + 144 ( subtract 144 from both sides )

25 = x² ( take square root of both sides )

[tex]\sqrt{25}[/tex] = 5 = x

x = 5

The 10 number from one to 10 are plit into two group. The um of the number in one group i N, and the product of the number in the other group i N. What i the larget poible value of N?

Answers

The largest possible value of N is 42, which is equal to the sum of numbers of one group and product of numbers of other group.

We have provided the following informations,

total number = 10 and possible numbers are,

S = {1, 2,3,4,5,6,7,8,9,10}

Now, we have to split the 10 numbers into two groups. The conditions for group making are

Sum of number in one group is Nproduct of the number of other group is N

maximum possible sum of numbers from S is 55.

because given numbers are in A.P and sum of A 10 terms is 55 in A.P.

but according to question, t the maximum possible value of N which follow the conditions is 42.

we can splits the set S elements in two groups such that one is P={6,7} and other one Q={ 1,2,3,4,5,8,9,10}

sum of numbers of Q is 42 and product of second group (P) = 42

No other value of N greater than 42 is possible for N .

Hence, 42 is largest possible value of N.

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Your store cost on a loaf of bread is $0. 75, and your retail price is $3. 85. You are having a promotion which discounts the bread 20%. What is your margin on the discounted bread?.

Answers

The margin on the discounted bread is $2.33

Given,

In the question:

Your store cost on a loaf of bread is $0. 75,

and your retail price is $3. 85.

You are having a promotion which discounts the bread 20%.

To find the margin on the discounted bread.

Now, According to the question:

Given store cost on a loaf of bread is $0.75 and retail price is $3.85.

Discount is always given on retail price.

The amount of discount is 20%

Discount given on $3.85 = 20% of 3.85= .20(3.85)= 0.77.

Cost of bread after discount =3.85-0.77= 3.08

The discounted bread costs $3.08.

The difference in store cost and discounted cost = 3.08-0.75=$2.33

Hence, the margin on the discounted bread is $2.33

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Find the surface area and volume of each triangular prism (base is a right triangle).
triangle legs are 3 ft and 4 ft, hypotenuse is 5 ft, height of prism is 8 ft

Answers

The surface area of a triangular prism = 108cm2

The volume of the triangular prism = 48cm3

The space occupied by a two-dimensional flat surface is called the area. It is measured in square units. The area occupied by a three-dimensional object by its outer surface is called the surface area.

Given that

The Triangle legs are 3 and 4 feet long, the hypotenuse is 5 feet long, and the prism height is 8 feet tall.

We have to determine the surface area and volume of each triangular prism

here a = 3ft b = 4ft  c = 5ft and height  h = 8ft

Surface area of triangular prism = ab + h(a+b+c)

= 3x4 + 8(3+4+5)

= 12 + 8(12)

= 12 + 96

= 108cm2

Volume of triangular prism = ½(abh)

= ½ (3x4x8)

=1/2(96)

= 96/2

= 48cm3

Therefore

The surface area of a triangular prism = 108cm2

The volume of the triangular prism = 48cm3

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A family buys a studio apartment for 150,000. They pay a down payment of $22,500. a.Their down payment is what percent of the purchase​ price?
b. What percent of the purchase price would a ​$60,000 down payment​ be?
please help!!!

Answers

a. The down payment is 15% of the
purchased price
b. A $60,000 down payment would be 40%
of the purchase price

what's the slope of 6x+13y= -18

Answers

Answer:

slope is the coefficient of x

so it is 6

good luck!!

HWLP ASPP PLEASE SHOW UR WORK

Answers

Answer: 1. 3

5. -3

Step-by-step explanation:

I hope this helps. !!

A cubic polynomial function f has a leading coefficient of 2 and a constant term of -5. When f(1) is zero and f(2) is three what is f(-5). Explain?

Answers

The value of f(-5) = -130

A cubic equation is an equation with degree three. All cubic equations have either one real root and two imaginary roots or three real roots. When polynomials have degree three, they are referred to as cubic polynomials.

A Cubic polynomial function is a polynomial function with the highest degree of exponents as 3. A cubic polynomial function has the following standard form:

Ax3 + bx2 + cx +d = 0

For the given question the cubic equation will be:

2x3 + bx2 + cx - 5 = 0

Given

Leading coefficient (a) = 2

Constant (T) = -5

f(1) = 0

f(2) = 9

Therefore the equation formed will be:

2x3 + bx2 + cx - 5 = 0

Now f(1) = 0

2(1)3 + b(1)2 + c(1) - 5 = 0

2 + b + c -5 = 0

b + c = 3  

b = 3-c -----(1)

On solving f(2) = 3

2(2)3 + b(2)2 + c(2) - 5 =3

16 + 4b + 2c – 5 =3

4b +2c = 3 – 11

4b + 2c = -8  ----(2)

Now substitute the b value in equation (2)

4(3-c) + 2c = -8  

12 – 4c +2c = -8

-2c = -20

C =10

Now substitute the c value in equation (1)

b= 3 – c

b = 3 -10

b = -7

Now substitute the b and c values in the cubic equation

2x3 - 7x2 + 10x - 5 = 0

Now calculate f(-5)

2(-5)3 - 7(-5)2 + 10(-5) - 5

= -250 + 175 – 50 -5

= -130

Therefore the value of f(-5) = -130

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algebra 2 please help :)!

Answers

the answer to your question is D

please help!!!! tysm in advance

Answers

The least common denominator, LCD, for the given pair of fractions is x²- 25

Determining the least common denominator

From the question, we are to determine the least common denominators of the given fractions.

The given fractions are

3/x -5 and 3/x + 5

To determine the least common denominator of the fractions, we will determine the lowest common multiple of their denominators.

The denominators are x - 5 and x + 5

To do this, we will find the product of the expressions

(x -5)(x + 5)

Clear the parentheses by applying the distributive property

That is,

x(x + 5) -5(x + 5)

x² + 5x -5x - 25

x² - 25

Hence, the LCD is x² - 25

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Jerry watched 1 2 of a movie in the morning, and he watched ome more at night. By the end of the day, he till had 2 5 of the movie left to watch. How much of the movie did Jerry watch at night?

Answers

Jerry watched 1/10 part of the movie at night.

Given that,

Watched movie in morning = 1/2

Movie left to watch = 2/5

To find:

Movie she watch at night

Now,

Movie she watch at night= 1 - Watch movie in morning - Movie left to watch

                                         = 1 - 1/2 - 2/5

solving the right hand side by taking LCM , we get,

                            = 10 - 5 - 4/10

                            = 1/10

∴ Movie she watch at night is 1/10.

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Callie has a rope that is 14.7 inches long. She cuts the rope into 3 pieces. If each piece is the same length, how long is each piece of rope?

Answers

Answer:

Each piece will be 4.9 inches long

Step-by-step explanation:

All you have to do is divide 14.7 by three as the rope itself is cut into 3 equal parts

therefore: 14.7/ 3= 4.9

if a farm has 30 chickens and cows and there are 82 chicken and cows legs all together then how many chickens and how many cows could the farm have?

Answers

Answer: 11 cows and 19 chickens

Step-by-step explanation:

The farm could have 5 cows and 32 chickens

Part A: Without calculating the values, compare the expressions using <, >, or =.
Write the correct symbol. Draw a model if it helps you.
(5+15)x13
31×(15+5)
The difference between 15 fours and
6 fours.
The sum of 4 fours and 5
fours
Part B: Explain how you compared the expressions without calculating.

Answers

The amount of cookies baked was 28 cookies

Solution for how many cookies your mother bake altogether

let the number of pumpkin cookies be x

half of them on a plate for your brother and you

= x - x/2 = x/2

Your dog Gobbles ate six

= x/2 - 6

Your brother ate half of what was left

= (x/2 - 6)) / 2

= x/4 - 3

you ate the last four means that what was left is equal to 4

x/4 - 3 = 4

x - 12 = 16

x = 16 + 12

x = 28

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Please help me solve it WITHOUT THE USE OF A GRAPHING CALCULATOR OR ANY ONLINE TOOL.

Answers

Answer:

a) See attached (sorry if its a bit unneat, use 5 points for more accuracy while drawing. 3 points is generally accepted though.)

b) 80 mins

c) 4000 meters, 40 minutes

Step-by-step explanation:

First, lets define the literal meaning of the questions.

A) Graph the function (I will explain how to do below)

B) What is the absolute value of the distance of the x-intercepts?

C) What is the y value of the vertex (maximum/ minimum value). What is the x value of the vertex?

Lets solve these problems. To graph a quadratic equation by hand, first you must find the vertex. Formula for the x-value of the vertex:

[tex]\frac{-b}{2a}[/tex]

Because a quadratic equation is in the form:

[tex]ax^2 + bx + c = 0[/tex]

We can find the values of a and b.

Values of a and b in this equation:

a: -2.5

b: 200

Plug into the vertex formula (shown above), -b/2a

[tex]\frac{(-)(200)}{(2)(-2.5)}[/tex]

Simplify.

[tex]\frac{-200}{-5}[/tex]

Simplify.

-200/-5 = 40

Now we have 40, the x value of the vertex. Plug 40 back into the x values of the problem (t in this word problem) to find the y value of the vertex.

The equation:

[tex]h=-2.5t^2+200t[/tex]

Plug in 40 to the t values.

[tex]h = -2.5(40)^2 + 200(40)[/tex]

Simplify.

[tex]h = -4000 + 8000[/tex]

Add.

h = 4000

Now, we have the values of the vertex.

Values of vertex:

x: 40

y: 4000

This means that when the x-value is 40, the y-value is 4000. In this case, it means 40 minutes in, the altitude of the plane is 4000 meters.

On a graph, draw a point at x-value 40 and y-value 4000. This will be needed when we draw the graph.

We need at least 3 points to graph a quadratic equation (this applies to all parabolas.)

This part is a bit hard to explain, but you will get it with this example. Since we need 3 points, we need to solve for 2 more points like we just did. But what x-values do we use? For the vertex, we knew the x value was -b/2a!

Solve for x-values that have an equivalent absolute distance from the x value of the vertex.

For example, in this case, the x value of the vertex is 40.

If we were to pick the x value of 38 for the 2nd point, we would have to use the 42 for the 3rd point as they are both 2 away from 40.

|40-38| = 2

|40-42| = 2

I will use the x values of 38 and 42 to graph this. Lets do the same thing we did to find the y value of the vertex. Plug the x values into the equation individually.

Equation:

[tex]h=-2.5t^2+200t[/tex]

Plug in 38 to the x values (in this case its called t.)

[tex]h = -2.5(38)^2 + 200(38)[/tex]

Simplify.

h = -3610 + 7600

Add.

h = 3990

This means when the x value of the parabola is 38, the y value is 3990. In this case, it means after the plane has flown for 38 minutes, the altitude of the plane is 3990.

Now lets find what the y-value of the parabola would be when the x-value is 42 (when we've did this, we can graph it.)

But here is a little trick to speeden things up. If the absolute value of the difference of the x-value of the vertex (40 in this case) and the x value of the point we just found (38 in this case) is the same as the absolute value of the difference of the 3rd point we need to graph (42 in this case), which is always true if you followed the steps above, the y value is the same!

So, this means, when:

Point 2:

x: 38

y: 3990

Point 3:

x: 42

y: 3990

The y-value of the 3rd point we need to find is 3990.

Now we can graph it using our points.

Point 1 (Vertex):

x: 40

y: 4000

Point 2:

x: 38

y: 3990

Point 3:

x: 42

y: 3990

I'll just use paint to draw this, draw the points, label them, and connect the points with a parabola.

Now lets answer b using the definitions.

Because we need to find the x intercepts, lets use the quadratic formula.

[tex]\frac{ -b± \sqrt{b^2-4ac}}{2a}[/tex]

Ignore the A's, its a bug.

If you need to know how to use the quadratic equation, DM me. Otherwise, I will just write the x-intercepts.

x-intercepts:

0,80

Because it is asking for the distance between Toronto and Montreal in minutes, subtract 0 from 80.

80-0=80

B) 80 minutes

The maximum height of the aircraft is the y value of the vertex and the time that the aircraft reaches this height is the x-value of the intercept.

(Vertex):

x: 40

y: 4000

C) 4000 meters, 40 minutes

Answer:

a)  See attached.

b)  80 minutes

c)  Maximum height = 4000 m

    Time = 40 minutes

Step-by-step explanation:

Given function:

[tex]h=-2.5t^2+200t[/tex]

where:

h is the height of the aircraft, in metres.t is the time, in minutes.

Part a)

The function is quadratic, which means the graph of the function is a parabola.  

Axis of Symmetry

A parabola has perfect symmetry.

For a quadratic in the form  [tex]ax^2+bx+c[/tex], its axis of symmetry is:

[tex]\boxed{x=-\dfrac{b}{2a}}[/tex]

Therefore, the axis of symmetry for the given function is:

[tex]x=-\dfrac{200}{2(-2.5)}=40[/tex]

Vertex

As the leading coefficient is negative, the parabola opens downwards.

Therefore, the vertex is the maximum point of the parabola.

The axis of symmetry is the x-value of the vertex.

Substitute t = 40 into the given function to find the y-value of the vertex:

[tex]\implies h(40)=-2.5(40)^2+200(40)[/tex]

[tex]\implies h(40)=4000[/tex]

Therefore, the vertex of the function is (40, 4000).

x-intercepts

To find the x-intercepts of the function, set the function to zero and solve for t:

[tex]\implies -2.5t^2+200t=0[/tex]

[tex]\implies -2.5t(t-80)=0[/tex]

Therefore:

[tex]\implies -2.5t=0 \implies t=0[/tex]

[tex]\implies t-80=0 \implies t=80[/tex]

Therefore, the x-intercepts are (0, 0) and (0, 80).

Graphing the function

Draw a coordinate plane where the axis scale is:

x-axis : y-axis = 1 : 100

Plot:

Vertex = (40, 4000)Axis of symmetry: x = 40x-intercepts:  (0, 0) and (0, 80)

Draw a curve, symmetric about the axis of symmetry, that passes through the vertex and the x-intercepts.

Part b)

When the aircraft is in Toronto and Montreal, the height of the aircraft is zero.

The time at which the height of the aircraft is zero is t = 0 and t = 80 (from part a).  Therefore, the time it takes to fly from Toronto to Montreal is the difference between the two times:

[tex]\implies 80-0=80\; \sf minutes[/tex]

Part c)

The maximum height of the aircraft is the y-value of the vertex of the parabola.

Therefore, as the vertex of the parabola is (40, 4000), the maximum height of the aircraft is 4000 m.  

The maximum height is reached 40 minutes after the aircraft leaves Toronto.

i really need help. Strawberries cost $2.13 per pound and Annie purchased 1.2 pounds. How much did she pay for strawberries if her answer is rounded to the nearest cent?

Answers

Annie paid a total of $2.6 for 1.2 pounds of strawberries

How to determine the amount paid?

In this question, we have the following parameters:

Unit cost per pound = $2.13 per pound

Number of pounds = 1.2 pounds

The amount paid for the number of pounds is represented by the equation

Amount paid = Unit cost per pound x Number of pounds

Substitute the known values in the above equation So, we have the following equation

Amount paid = 2.13 * 1.2

Evaluate the products

Amount paid = 2.556

Approximate

Amount paid = 2.6

Hence, the amount is $2.6

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Answer:

2.56

Step-by-step explanation:

5 cards are drawn from a standard deck without replacement. What is the probability that at least one of the cards drawn is a 3? Express your answer as a fraction or a decimal number rounded to four decimal places.

Answers

The Probability that at least one of the cards drawn is 3 is  0.3412 .

In the question ,

it is given that ,

number of cards  drawn from the deck [tex]=[/tex] 5 .

total cards in the deck is [tex]=[/tex] 52 .

number of "3" cards in the deck = 4

number of cards that are not "3" = 48 .

Number of ways to draw cards that are not 3 = ⁴⁸C₅

Total number of ways to draw 5 cards from the deck = ⁵²C₅

the probability that card dawn is not 3 = ⁴⁸C₅/⁵²C₅

as the value of ⁴⁸C₅ = 1712304 and ⁵²C₅  = 2598960  

= 1712304/2598960    

= 0.65885

So , the probability that at least one card is 3 = 1 - (probability that no card is 3)

= 1 - 0.65885

= 0.34115

≈ 0.3412

Therefore , The Probability that at least one of the cards drawn is 3 is  0.3412 .

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the 6th term of an arithmetic progreion i 35 and the 13th term i 77. find the 20th term

Answers

The 20th term of the given arithmetic progression is 119.

What is arithmetic progression?

An arithmetic progression is a set of integers with a fixed difference between any two succeeding numbers (A.P.).

3,6,9,12,15,18, and 21 are A.P. examples.

So, the formula for the nth term:

a+(n-1)d, where d is the common difference

Now, take out the equation:

6th term = 35

a+(6-1)d= 35

a+5d=35 ....(1)

13th term = 77

a+12d= 77 .....(2)

Then, subtract equation (1) from equation (2):

a+12d-(a+5d)= 77-35

a+12d-a-5d= 42

7d=42

d=6

Calculate from equation (1):

a= 35-5d= 35-5(6)= 35-30 = 5

20th term= a+19d= 5+19(6)= 119

Therefore, the 20th term of the given arithmetic progression is 119.

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