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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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Step-by-step explanation

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What is the answer to this math problem -5+-3+2
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Blizzard [7]

Number of items sold by Shelley = 3 items.

Let us assume cost of each item sold by Shelley = $ x each.

Total cost of 3 items for Shelly sold = 3*x = 3x.

Number of items sold by Billy Bob = 4 items.

The cost of each item sold by Billy Bob = $2.25 less than the items that Shelley bought = $(x-2.25) each.

Total cost of 4 items for Billy Bob sold = 4*(x-2.25) = 4(x-2.25).

Both Shelley and Billy Bob paid the same amount of money. So, we can setup an equation now.

a) Total cost of 4 items for Billy Bob sold=Total cost of 3 items for Shelly sold.

4(x-2.25) = 3x

b) Solving equation for x now.

Distributing 4 over (x-2.25), we get

4x - 4*2.25 = 3x.

4x -9 = 3x.

Adding 9 on both sides, we get

4x -9+9 = 3x+9

4x =3x+9.

Subtracting 3x from both sides, we get

4x-3x =3x-3x+9.

x = 9.

c) Checking the solution of the equation by plugging x=9 in equation we got above.

4(x-2.25) = 3x  => 4(9-2.25)= 3*9

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               => 27 = 27.

We got left side = right side. So the solution x=9 is correct.

d) The cost of each item sold by Billy Bob = 9-2.25 = $6.75

Therefore, the cost of each item sold by Shelley is $9 and cost of each item sold by Billy Bob is $6.75.

3 0
3 years ago
The length and width of a rectangular playground are 500ft to 750ft. Anna makes a scale model of the playground using a scale of
nasty-shy [4]
I know it's late but,
25 ft ÷ 4 cm = 6.25
500 ÷ 6.25 = 80
750 ÷ 6.25 = 120
and so your answer is C.<span> 80 centimeters by 120 centimeters
 and again sorry it's late :D</span>
7 0
3 years ago
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