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nignag [31]
2 years ago
12

Answer to letter B , C, D

Mathematics
1 answer:
Feliz [49]2 years ago
8 0

Answer:

  • See below.

Step-by-step explanation:

<u>Our expression given: 3(x-6) + 2y</u>

A. Substitute x = -7 and y = 10 into the equation.

3( - 7 - 6) + 2(10)

<u>Use the Distributive Property:</u>

- 21 - 18 + 20

<u>Solve:</u>

- 19

B. Substitute x = 5 and y = -2 into the equation.

3(5 - 6) + 2( - 2)

<u>Use the Distributive Property:</u>

15 - 18 + -4

<u>Solve:</u>

-7

C. Substitute x = 0 and y = 6 into the equation.

3(0 - 6) + 2(6)

<u>Use the Distributive Property:</u>

- 18 + 12

<u>Solve:</u>

-6

D. Substitute x = 3 and y = 3 into the equation.

3(3 - 6) + 2(3)

<u>Use the Distributive Property:</u>

9 - 18 + 6

<u>Solve:</u>

-3

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Answer:

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
PROBLEM: Juan hires an electrician. Juan pays a one-time fee of $30. Juan also pays $45 for each hour the electrician works. A.
PolarNik [594]

Answer:

A: C=45h+30

B: C=$322.50

Step-by-step explanation:

A: We'll start with the equation for the total charge. Juan is saying he will pay a one time fee of $30, meaning there is 30 dollars added to what ever the hourly wage is. This can be represented by the +30. Now if "h" represents the variable for which the hourly wage will be calculated, and he pays $45 dollars per hour this will be represented as 45h. <em>As an example if I pay you 2 dollars per hour using the same variable "h", this would be represented as 2h. So if you worked for two hours you would get 4 dollars, this is proven by the fact the 2(2) (remeber im replacing the "h" with the hours you worked) obviously 2 times 2 is 4 proving my point. </em>This information will give you the equation you see above.

B: Onto solving for how much Juan will pay. Now you say youre supposed to have 9 answer but this can't be true. All you need to do is plug the hours given into "h" and solve the equation. It should look something like:

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Im using a decimal because it should be clear 1/2=0.5

<u>C= 292.5+30</u>

45x6.5 always go with PEMDAS, we are multiplying first. Then add 292.5 plus 30

This results in the answer of:

<u>C=$322.50</u>

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Step-by-step explanation:

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