in in the previous activity you solved a system of equations representing the carnival admissions using the elimination method in this activity you will solve the same system using substitution then you'll compare your solution with the solution you obtained in the previous activity by using the elimination method

the two equations from the previous activity are given below

k + a = 500 (1)
3K + 10A equals 3,600 (2)

which equation has at least one of its variables with a 1 as it's coefficient?

Answers

Answer 1

Answer:

The value of a=300 and value of k=200

If you solve the above system of equations by elimination method, you will get the same values of a and k.

In Equation 1 [tex]k+a=500[/tex] both variables k has 1 as their coefficient.

Step-by-step explanation:

We need to solve the system of equations using substitution method

The equation are:

[tex]k + a = 500--eq(1)\\3k + 10a = 3,600 --eq(2)[/tex]

For substitution method, we find value of k from equation 1 and put in equation 2

[tex]From \ eq(1) \ we \ get\\k=500-a[/tex]

Putting it in eq(2)

[tex]3k+10a=3600\\Put \ k=500-a\\3(500-a)+10a=3600\\1500-3a+10a=3600\\7a=3600-1500\\7a=2100\\a=\frac{2100}{7}\\a=300[/tex]

So, we get value of a = 300

Now finding value of k by putting value of a in equation [tex]k=500-a[/tex]

[tex]k=500-a\\Putting \ a \ =500\\k=500-300\\k=200[/tex]

So, we get value of k =200

The value of a=300 and value of k=200

If you solve the above system of equations by elimination method, you will get the same values of a and k.

In Equation 1 [tex]k+a=500[/tex] both variables k has 1 as their coefficient.


Related Questions

What is the slope of this line?

Answers

Answer:

The slope is -1

Step-by-step explanation:

Answer: -2

Step-by-step explanation:

nice phone case

Find the units of displacement (translation) of the point (4,2) to get the image of (7,7). Chapter (transformation) (coordinates) (translation). Step by step answer please.

Answers

Answer:

The rule of the translation will be:

(x, y) → (x+3, y+5)

Step-by-step explanation:

Translation of an object is basically termed as "sliding" the original. If the image is moved right by the 'c' units, the 'c' unit(s) are added to the x-coordinate and if the image is moved left by the 'c' units, the 'c' unit(s) are subtracted to the x-coordinate.

And If the image is moved up by the 'c' units, the 'c' unit(s) are added to the y-coordinate and if the image is moved down by the 'c' units, the 'c' unit(s) are subtracted to the x-coordinate.

As the point is (4, 2)

The image of the point is (7, 7)

As the coordinates of the image point indicate that 3 units are added to the x-coordinate of the original point, and 5 units are added to the ý-coordinate.

Hence, the image will be move 3 units to the right and 5 units up.

Therefore, the rule of the translation will be:

(x, y)  →  (x+3, y+5)

as

(4, 2) →  (x+3, y+5) = (4+3, 2+5) = (7, 7)

A graph shows time (minutes), numbered 2 to 18 on the horizontal axis (t), and altitude in feet, numbered 30 to 270 on the vertical axis (h). A solid circle appears at point (0, 210) and point (14, 0), and a line connects the 2 points.
What is the domain of the function represented in the graph?

{t| 0 ≤ t ≤ 14}
{h| 0 ≤ h ≤ 210}
{t | 0 ≤ t ≤ 210}
{h | 0 ≤ h ≤ 14}

Answers

Answer:

its A

Step-by-step explanation:

Carl wheezer told me

The domain of the function will be {t| 0 ≤ t ≤ 14}. so the correct option is A.

Since we know that the domain of a function refers to the set of possible input values or the values that the independent variable can take.

Thus, the independent variable is represented by the horizontal axis, which is time (t) in minutes.

We are given that the solid circle appears at point (0, 210) and point (14, 0), and a line connects these two points.

The x-coordinate of the first point is 0, and the x-coordinate of the second point is 14. So, the time values that correspond to these points are 0 minutes and 14 minutes, respectively.

We can see that the function is defined from time 0 to time 14.

Therefore, the correct answer is:

{t | 0 ≤ t ≤ 14}

This means that the domain of the function is the set of all possible values of t such that t is greater than or equal to 0 and less than or equal to 14.

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Phone numbers consist of a three-digit area code followed by seven digits. If the area code must have a 0 or1 for the second digit, and neither the area code nor the seven-digit number can start with 0 or 1, how many different phone numbers are possible?

Answers

Answer:

1.28 * 10^10

Step-by-step explanation:

Area Code:  8 * 2 * 10

7 digit number: 8 * 10 * 10 * 10 * 10 * 10 * 10

The total number of area codes is 160

8,000,000 * Area Codes

1.28*10^10

Find the area of the rectangle.
1
m
3
5
m
6
m
Someone help ASAP I will give Brainly !!!!!!!!!

Answers

5/18 for the picture

A recipe that serves 8 people requires 4 1/2 cups of flour.
How many servings are in one recipe?

Answers

8 serving of that recipe

Answer:

1

Step-by-step explanation:

trust me

help plz 20 brainlist

Answers

Ohhh its b i promise i got it right

Please help asap I will give Brainly points

Answers

Answer:

I will try to help but where us ur question ¿

What is the equation of the line that passes through the point (4, - 7) and has a slope of ? -1/2

Answers

Answer:

y= -1/2x -5

Step-by-step explanation:

in slope intercept form

Answer:

y=-1/2x-5

Step-by-step explanation:

Hope it helps!


Rotation of 360° centered at the origin. yes or no
Rotation of 360°centered at (2,3). yes or no
Rotation of 90° centered at (3,5). yes or no
Rotation of 45° centered at (2,3). yes or no
Rotation of 225° centered at the origin. yes or no
Rotation of 270° centered at (2,3). yes or no
Rotation of 181° centered at (2,3). yes or no

Answers

Answer:

YesnoyesyesnonoYes

Step-by-step explanation:

Its in the Chrome Yowill find it there but Thank you

PLEASE HELP I'M IN A HURRY

Answers

Jansnsnsnwkeksnsznznsnwns

Answer:

The answer is b (1,11)

Step-by-step explanation:

You can graph the lines and find the solution that way (which is where the lines intersect)

or you can algebraically solve.

To check this, you can basically plug in the x and y values for the equation and see if they match with what the equation equals..

Example:

10x + 3y = 43

-9x - y = -20

10(1) + 3(11) --> 10 + 33 = 43.. 43 equals 43

-9(1) - (11) = -9 - 111 = -20.. -20 equals -20

(the values match up so it's a solution)

the first four numbers in a pattern are 4, 2, 1, and 0.5. Find the next three numbers in the pattern.​

Answers

Given:

The first four numbers in a pattern are 4, 2, 1, and 0.5.

To find:

The next three numbers in the pattern.​

Solution:

We have a pattern,

4, 2, 1, 0.5

Clearly, it is a GP and the common ratio is [tex]\dfrac{1}{2}[/tex] because each term is half of its preceding term.

Next term after 0.5 = [tex]0.5\times \dfrac{1}{2}=0.25[/tex]

Next term after 0.25 = [tex]0.25\times \dfrac{1}{2}=0.125[/tex]

Next term after 0.125 = [tex]0.125\times \dfrac{1}{2}=0.0625[/tex]

Therefore, the next three numbers in the pattern are 0.25, 0.125 and 0.0625 respectively.

The Royal Fruit Company produces two types of fruit drinks. The first type is 40% pure fruit juice, and the second type is 90% pure fruit juice. The company is attempting to produce a fruit drink that contains 55% pure fruit juice. How many pints of each of the two existing types of drink must be used to make 110 pints of a mixture that is 55% pure fruit juice?

Answers

Answer:

The Royal Fruit Company produces two types of fruit drinks. The first type is 70%

pure fruit juice, and the second type is 95%

pure fruit juice. The company is attempting to produce a fruit drink that contains 75%

pure fruit juice. How many pints of each of the two existing types of drink must be used to make 90

pints of a mixture that is 75%

pure fruit juice?

Step-by-step explanation:

To make the desired drink we need to add 30 pints of  95% of the drink, and  80 pints of 40% of the drink.

What is volume?

Volume, which is measured in cubic units, is the 3-dimensional space occupied by matter or encircled by a surface. The cubic meter (m3), a derived unit, is the SI unit of volume. Volume is another word for capacity.

Given, The Royal Fruit Company produces two types of fruit drinks. The first type is 40% pure fruit juice, and the second type is 90% pure fruit juice.

Let,

a = Volume of 40% of drink

b = volume of 95% of drink

Since the two existing types of drink must be used to make 110 pints of a mixture that is 55% pure fruit juice

a + b = 110

0.4a + 0.95 b = 110 * 0.55

Comparing these equations we will get,

a = 80

and b = 30

Therefore, To make the desired drink we need to add 30 pints of  95% of the drink, and  80 pints of 40% of the drink.

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Based on the graphs, which statement is true?
PLEASE HELPP
15 points:/!?!

Answers

Answer:

I think b

Step-by-step explanation:

Katie ordered candles that cost $3 each from a website. She was charged a flat shipping fee of $6 and no sales tax. If she spent a total of $54, which equation can be used to find c, the number of candles she ordered?

Answers

Answer:

Equation can be used to find  the number of candles (c) Katie ordered is 54 = 3c + 6 .

Option (C) is correct .

Step-by-step explanation:

A. 3c = 54

B. 6c = 54

C. 3c + 6 = 54

D. 3c – 6 = 54

As given

Katie ordered candles that cost $3 each from a website.

She was charged a flat shipping fee of $6 and no sales tax.

If she spent a total of $54,

c represented the number of candles .

Equation becomes

Total cost = Cost per candle + Flat shipping fee

54 =  3 × c + 6

54 = 3c + 6

Equation can be used to find  the number of candles (c) Katie ordered is 54 = 3c + 6 .

Option (C) is correct .

Please help me solve these!!

Answers

Answer:

18i, -7-i, -6+18i

Step-by-step explanation:

1. √-324

first take out the negative as √-1=i

√-324= i√324

324 =2*162

324=2*2*81

324=2*2*9*9

i√324=i√2*2*9*9= i* 2*9= 18i

3.

-4+7i-3-8i combine like terms

-4-3 -8i+7i = -7-i

5.

(1+5i)(4-2i) distribute

1*4 -1*2i +5i*4 -5i*(-2i) multiply

4 -2i +20i +10i² but i²= -1 so

4 -2i +20i -10 combine like terms

-6 +18i

given the polynomial function below find F(-4) f(x)=2x^ 2 -x + 9

Answers

Answer:

45

Step-by-step explanation:

The value of f(-4) in the polynomial functions f(x) = 2x² - x + 9 is 45

How to evaluate the function?

The function is given as:

f(x) = 2x² - x + 9

Substitute -4 for x

f(-4) = 2(-4)² - (-4) + 9

Evaluate the exponents

f(-4) = 2(16) - (-4) + 9

Evaluate the product

f(-4) = 32 - (-4) + 9

Evaluate the sum and the difference

f(-4) = 45

Hence, the value of f(-4) is 45

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Answer fast plzzzz ASAP

Answers

Answer:

I think its 4

Step-by-step explanation:

It may be 4 I am so sorry if its wrong

Answer:

this is what you get for this

Step-by-step explanation:

C.P.=Rs 400, LOSS=5%, S.P=Rs X, S.P.=C.P.-5% OF C.P, FIND S.P. (STEP BY STEP PLZ)​

Answers

[tex]s.p. = c.p. \times 5\% \\ or \: x = 400 \times 5 \div 100 \\ or \: x = 4 \times 5 = 20 \\ [/tex]

Simplify:

4a - (-3b) + (-2c)

Answers

Answer: 4a+3b-2c

this is the answer

it would be 4a+3b-2c

Yesenia needs to rent storage space for some of her belongings. She paid a one-time original storage fee
of $45.00, and now pays $18.00 each month (m). Which answer choice shows an expression that
represents the total amount Yesenia has paid after a certain number of months (m)?

Answers

Answer:

its 67

Step-by-step explanation:

solve:
-3 ( -4x 1 ) = 13

Answers

Answer:

4/3            (assuming the (-4x 1) is (-4x+1))

Step-by-step explanation:

-3(-4x+1)=13

12x-3=13

12x=16

x=4/3

Answer:

x=4/3

Step-by-step explanation:

-3(-4x1)=13<=>12x-3=13 <=>12x=16 <=>x=4/3

Which has a quotient of 60?

A. 480÷80
B. 4,800÷8
C. 4,800÷80
D. 4,800÷800

Answers

Answer:

c 4800/80 =60

Step-by-step explanation:

Answer:

the answer is C

Step-by-step explanation:

divide 60 by the 8 and see which it gets

WILL GIVE EXTRA POINTS
Assignment name: Segment Addition ​

Answers

Answer:

the measure of AB equals the measure of BC

2x+1=3x-4

4+1=3x-2x

5=x

BC=3x-4=3*5-4=15-4=11

AB=2x+1=2*5+1=10+1=11

AC=AB+BC=11+11=22

Step-by-step explanation:

Answer:

x = 18

Step-by-step explanation:

2x + 5 + 17 = 3x + 4

2x + 22 = 3x + 4

2x + 22 - 22 = 3x + 4 - 22

2x = 3x - 18

2x - 3x = 3x - 18 - 3x

-x = -18

-x / -1 = -18 / -1

x = 18

Hope this helps!

Please help...
Determan the measure of G...
Also, please tell me how you got the answer...

Answers

Answer: 42.5

Step-by-step explanation:

3x + x+10 + G = 180

4x + 10 = 180

4x = 170

x = 42.5

Step-by-step explanation:

Since this is an isosceles triangle, the angle at G is the same as the angle at P. Thus G=(x+10)°.

Remembering that the sum of a triangle adds up to 180°.

Therefore,

3x + (x+10) + (x+10)=180.

5x + 20 = 180

5x = 160

x=32

Remember, G=x+10

G= 32+10

G=42°

QUESTION - What is -2(3x + 12y - 17x - 16y + 4) simplified? ANSWERS A. -40x + 8y + 2 B. 28x + 8y + 2 C. 28x + 6y + 2 D. -28x - 8y + 2 -------------------------- Time remaining - 1 hour and 38 minute -------------------------- Please help me! Thank you!

Answers

Answer:

28 + 8y - 8

Step-by-step explanation:

According to the problem;

-2(3x + 12y - 17x - 16y + 4)

Collecting like terms;

-2(3x -17x + 12y - 16y + 4)

-2(-14x - 4y + 4)

28 + 8y - 8

None of the options matches the correct answer.

Which of the binomials below is a factor of this trinomial?
X^2+ 12x+32
O A. x-2
O B. x+ 2
O C. X-4
O D. X+4

Answers

It has to be X+4 Or D correct me if I’m wrong

A certain forest covers an area of 3000 km^2. Suppose that each year this area decreased by 8.75%. What will the area be after 11 year? Round answer to nearest square kilometer

Answers

Answer:  11(.875 -3000)

Step-by-step explanation:

What is the surface area of a cuboid of sides 2 cm, 3 cm, and 5 cm?

Answers

Answer:

the answer is 19cm thank you

Answer:100cm

Step-by-step explanation:

10+4=14

8+10=18

14x2=28

18x4=72

28+72

What are the solutions to the equation -2t+10t=0

Answers

Answer: No solutions

Step-by-step explanation:

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