Question

Michelle plans on raising $80 for her softball team. To raise the money, she is selling team shirts for $10 each.

So far she has raised $20. To calculate how many more shirts she needs to sell, Michelle subtracts 20 from 80
and then divides by 10.
Which of the equations below can be solved using the same steps?
A. 10x + 20 = 80
B. 20x + 10 = 80
C. 80x - 20x = 10
D. 10x + 20x = 80

Answer 1

Given:

Michelle plans on raising $80.

Selling price of each shirt = $10

So far she has raised $20.

To find:

The number of more shirts she needs to sell.

Solution:

Let x be the number of more shirts she needs to sell.

Selling price of one shirt = $10

Selling price of x shirt = $10x

Total raising amount = $(10x + 20)

Michelle plans on raising $80. So,

`10x+20=80`

Subtract both sides by 20.

`10x=80-20`

`10x=60`

Divide both sides by 10.

`x=(60)/(10)`

`x=6`

So, the required equation is
`10x+20=80`

Therefore, the correct option is A.