Please help me on my math assignment you have to write an inequality that models the combinations of multiple choice and essay questions you could answer during the test without running out of time.
Answer:
x + 15y ≤ tStep-by-step explanation:
From the table we see that:
Each multiple choice question takes 1 min and each essay takes 15 min to complete.x multiple choice questions will take x min and y essays will take 15y minTotal time required is x + 15yIf you have t minutes to complete the test then required inequality is:
x + 15y ≤ tAngela tried to solve an equation step by step. \begin{aligned} \dfrac34+m&=\dfrac54\\\\ \dfrac34+m-\dfrac34&=\dfrac54+\dfrac34&\green{\text{Step } 1}\\\\ m&=2&\blue{\text{Step } 2} \end{aligned} 4 3 +m 4 3 +m− 4 3 m = 4 5 = 4 5 + 4 3 =2 Step 1 Step 2
Answer:
Angela's mistake is in step 1, she failed to change the sign when subtracting from both sides
Step-by-step explanation:
Equation given :
The correct solution should be :
3/4 - 3/4 + m = 5/4 - 3/4
m = 2/ 4
m = 1/2
Therefore failure to change the sign will result in a obtaining a wrong answer for the exercise.
m=1/2
hope this helps!
what is the slope of the line in the graph below ?
Answer:
Step-by-step explanation: The slope of a line is rise over run. Learn how to calculate the slope of the line in a graph by finding the change in y and the change in x.
Find the length of side x in the simplest radical form with a rational denominator.
Answer:
[tex]\sqrt{2}[/tex]
Step-by-step explanation:
We can use either angle, but I'm going to use the one on the bottom. So, in order to find x, we need to use tangent. One side we know is the adjacent, and the side we don't know is the opposite, therefore we need tangent. Here's the equation:
[tex]tan(45)=\frac{x}{\sqrt{2}}[/tex]
Obviously, we can't have a root in our denominator, so we need to get rid of it somehow. Here's how:
We multiply the denominator of the fraction by [tex]\sqrt{2}[/tex]. [tex]\sqrt{2}[/tex] multiplied by itself is simply 2. Try it! We also want to multiply the numerator by [tex]\sqrt{2}[/tex], but there isn't really a number we can use with that, so we'll just add it to the side. The equation you have now is:
[tex]tan(45)=\frac{x\sqrt{2} }{2}[/tex]
Let's try to work this out now. Since the denominator is 2, we have to multiply both sides by it to find x.
[tex]\frac{x\sqrt{2} }{2*2} =x\sqrt{2}[/tex]
[tex]tan(45)*2=2[/tex]
We can plug 2 in for the x in the numerator now:
[tex]\frac{2\sqrt{2} }{2}[/tex]
2 and 2 cancel out, so you get 1 in both the numerator and denominator. That's how we get our answer of [tex]x=\sqrt{2}[/tex]
Also, because this is a 45-45-90 triangle, you don't really have to do all that work. If it's a 45-45-90 triangle, both legs should be the same length. :)
the sum of 2 consecutive integers is three times their difference what is the larger number
Answer:
2
Step-by-step explanation:
Let the two consecutive integers be x , x+1
Sum : x + x +1 = 2x + 1
Difference: (x +1) - 1 = x + 1 - 1 = x
Sum = 3 times their difference
2x + 1 = 3 * x
2x + 1 = 3x
1 = 3x - 2x
1 = x
The numbers are 1 , 2
what is 4/5 as a whole number
Answer: 4 over 5 is not a whole number and so it cannot be expressed as a whole number.
Step-by-step explanation:
are these triangles congruent ?
Answer:
yes
Step-by-step explanation:
from sss axiom
we can say that they are congurqnt
Need help in math will give brain if right
Answer:
c)
Step-by-step explanation:
Which of the following sets of side lengths could produce a triangle? Select
all that apply.
13 mm, 5 mm, and 6 mm
2 cm, 7 cm, and 6 cm
2 m, 5 m, and 7 m
6 ft, 6 ft, and 12 ft
The sets of side lengths that can produce a triangle are
2 cm, 7 cm, and 6 cm2 m, 5 m, and 7 m6 ft, 6 ft, and 12 ftThe triangle inequality theorem states that the sum of any two sides of a triangle is greater than or equal to the third side.
That is, in a given triangle of sides a, b and c,
a + b ≥ c
Analysing the sets of the side lengths given,
In triangle 2 cm, 7 cm, and 6 cm,
2 + 6 = 8,
Therefore 8cm which is greater than the third side being 7cm makes this side lengths possible to produce a triangle.
In triangle 2 m, 5 m, and 7 m,
2 + 5 = 7
Addition of both sides of the triangle is equal to the third side being 7m.
In triangle 6 ft, 6 ft, and 12 ft,
6 + 6 = 12
Addition of both sides of the triangle is equal to the third side being 12ft
Therefore the sets of side lengths could produce a triangle are
2 cm, 7 cm, and 6 cm
2 m, 5 m, and 7 m
6 ft, 6 ft, and 12 ft
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find the value of given expression
[tex] \sqrt{9 \times 81 \times 9} [/tex]
Answer:
√{9×81×9}=√(9²×9²)=±(9×9)=±81
Answer:
your answer will be 81
Step-by-step explanation:
.......
Part B The manager of The Gadget Factory wants to make sure that the next shipment costs no more than $15,000. Write an inequality that shows the amount of money that can be spent. Graph the inequality on the number line. Let n=the amount of money spent.
Answer:
Part B The manager of The Gadget Factory wants to make sure that the next shipment costs no more than $15,000. Write an inequality that shows the amount of money that can be spent. Graph the inequality on the number line. Let n=the amount of money spent.
Step-by-step explanation:
The inequality equation is n ≤ 15,000 , where n is the amount of money spent
What is an Inequality Equation?Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.
Given data ,
Let the inequality equation be represented as A
Now , the value of A is
Let the amount of money spent be represented as n
And , the next shipment costs no more than $15,000
So , n ≤ 15,000 be equation (1)
Therefore , the value of A is n ≤ 15,000 and the graph is plotted
Hence , the inequality equation is n ≤ 15,000
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What is the area of a circle with a radius of 4 cm? Give your answer in terms of pi.
(This is a math question from flocabulary, and I really need help!!)
Answer:
r = the radius, in your case, it's 4 cm. So. Area = π ×r2. = π× (4 cm)2. = 16π cm2 ≈ 50.24 cm2.
Step-by-step explanation:
simplify the product using the distributive property.
(8b+5)(7b-2)=?
Answer:
5 6 2 + 1 9 − 1 0
Step-by-step explanation:
(-15)-(-18) divided by 3
Answer:
The answer is (-9)
Step-by-step explanation:
The solution is, the result of the division is 1.
What is division?Division is the process of splitting a number or an amount into equal parts. Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication.
here, we have,
given that,
(-15)-(-18)
now we have to divide this by 3
so, we get,
(-15)-(-18) /3
now,
(-15)-(-18)
= -15 + 18
=3
so, we have,
(-15)-(-18) /3
=3 /3
=1
Hence. The solution is, the result of the division is 1.
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What is the interest rate if…
Principal = $1,250
Time = 4 years
Interest = $285.
its the last answer thanks :)
Answer:
(7,0)
Step-by-step explanation:
Explain what is a SYSTEM OF LINEAR EQUATIONS?
A mountain climber found that the relationship between his altitude and the surrounding air
temperature is linear. The function f (a) = - -100 a + 75 represents this relationship, where a
is the altitude in meters and f(a) is the temperature in degrees Fahrenheit. According to this
function, by how much is the temperature decreasing for every meter that the mountain climber's
altitude increases?
IF
100
O IF
100
75 F
-75F
Answer:- 1/100 degrees Fahrenheit
Step-by-step explanation:
The directions say decreasing so it has to be negative, and the slope is showing how much it is decreasing every meter. y=mx+b. The mx is the slope which is where the answer is located.
y=3(50)x
Based on the previous problem, how many bacteria will there be in 8 hours?
A. 74
B. 6,611
C. 1,200
D. 328, 050
Answer:
y=3(50)×
y=3(50) 8
50×3=150
150×8=1,200
If the center of a circle is at (a, b) and the radius of the circle is c, how would you write the equation of the circle?
Answer:
Step-by-step explanation:
(x-a)² + (y-b)² = c²
Winnie when she fell asleep sitting up so she just kept going back lol now I’m on a rampage posting my cats :,)
Answer:
that's an adorable little baby.
Step-by-step explanation:
Answer:
its cute
Step-by-step explanation:
a bed room set is being sold for $5500 if bought cash
Answer:
$5700 - $5500= $200
Explanation:
The total installments: 24 ($175) = $4200
The hire purchase price: $1500 + $4200 = $5700
The amount saved by paying cash: $5700 - $5500= $200
I have a question on triangle congruence its a homework assignment
Last year, there were 120 students in the
marching band. This year, there are 138.
What is the percentage of increase or decrease?
Answer:
The increase is 15%
Step-by-step explanation:
Hope this helps!
Which of the following statements must be true based on the diagram below? Answer correctly !!!!!!!! Will mark brainliest !!!!!!!!!!!!
Answer:
3rd one
Step-by-step explanation:
840 Km in 12 hours.Whatis the average speed.
ixl i need help asap
Answer:
1. Baseball
2. Soccer ball
3. Football
Explantion:
Speed = Distance / time
Baseball --> 1270/32 = 39.69
Football --> 1199/44 = 27.25
Soccer ball --> 1270/44 = 28.86
Answer:
1. Baseball
2. Soccer ball
3. Football
Formula= Speed = Distance / time
Baseball in fraction form is 1270/32 and in decimal form is 39.69
Football in fraction from is 1199/44 and in decimal form is 27.25
Soccer ball in fraction form is 1270/44 and in decimal 28.86
Hope this helps <3 Need thanks? Comment /hearthelp
What is the sum of the polynomials?
(6x + 7 + X ²) + (2x² - 3)
0 -X2+6x+4
3x2 +6x+4
9x + 4
O 9x2 +4
Answer:
B) 3x^2+6x+4
Step-by-step explanation:
(6x+7+x^2)+(2x^2-3)
6x+7+x^2+2x^2-3
3x^2+6x+7-3
3x^2+6x+4
The sum of the polynomials is 3x² + 6x + 4.
What are Polynomials?Polynomials are mathematical expressions which consist of one or more terms involving variables and coefficients connected with operations like multiplication, subtraction, addition and natural number powers of variables.
Given are two polynomials whose sum has to be found.
(6x + 7 + x ²) and (2x² - 3).
The sum of the polynomials is,
(6x + 7 + x ²) + (2x² - 3)
We have to operate the like terms together.
= (6x) + (7 - 3) + (x² + 2x²)
= 6x + 4 + 3x²
= 3x² + 6x + 4
Hence the sum of the polynomials is 3x² + 6x + 4.
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Help me please thanks
Replace x any with the given values:
x/y = 9/3 = 3
The answer is 3
Hank and Rosa play the following game: A bag has 15 tiles in it, each with a letter from the phrase probability game on it. Hank and Rosa take turns drawing a tile, recording the letter, and placing the tile back in the bag. Hank earns a point if he draws a vowel. Rosa earns a point if she draws a consonant. They decide that the letter y can be a vowel or a consonant. Which statement best explains whether or not the game is fair?
A. The game is not fair because the probability of Hank drawing a winning letter is less than the probability of Rosa drawing a winning letter.
B. The game is fair because Hank and Rosa have the same probability of drawing a winning letter.
C. The game is fair because both Hank and Rosa will get a point if the letter y is drawn.
D. The game is not fair because the probability of Hank drawing a winning letter is greater than the probability of Rosa drawing a winning letter.
Answer:
A
Step-by-step explanation:
There are 8 consonants (not including y) and only 6 vowels (not including y), so Rosa has a higher probability of winning.
The game is not fair because the probability of Hank drawing a winning letter is less than the probability of Rosa drawing a winning letter.
What is probability?
'Probability is defined as the possibility of an event to happen is equal to the ratio of the number of outcomes to the total number of outcomes.'
According to the given problem,
There are 8 consonants (not including y) and only 6 vowels (not including y), so Rosa has a higher probability of winning.
Hence, we can conclude that the game is not fair the probability of Hank drawing a winning letter is less than the probability of Rosa drawing a winning letter.
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