Question

brooklyn bought 8 bags of the same dog food. She has a $5 coupon. She spent $91. How much was each bad of dog food?

Answer 1

$12

Explanation:

Hi there!

What we know:

• Brooklyn bought 8 bags of dog food
• Brooklyn also used a $5 coupon
• The total was $91

Therefore, 8 × (cost of 1 bag) - 5 = 91

Form an equation with x as the cost of 1 bag of dog food:

8 × (cost of 1 bag) - 5 = 91

`8x-5=91`

Add 5 to both sides

`8x-5+5=91+5\\8x=96\\`

Divide both sides by 8

`(8x)/(8) = (96)/(8) \\x=12`

Therefore, 1 bag of dog food costs $12.

I hope this helps!