Question

Yoko received a $70 gift card for a coffee store. She used it in buying some coffee that cost $8.62 per pound. After buying the coffee, she had $26.90 left on her
card. How many pounds of coffee did she buy?

Answer 1

Answer:

She bought 5 pounds of coffee.

Step-by-step explanation:

We are looking for how many pounds so pounds would be your x.

each pound costs $8.62.

You are taking the money she payed for the coffee away from the $70 she received.

Set up your equation

70 - 8.62x = 26.90

Solve for x  

Subtract 70 from both sides  70-70 (Cancels out) - 8.62x= 26.90-70

-8.62x = -43.10

Divide -8.62 from each side.  -8.62/-8.62(cancels out) x = -43.10/-8.62 (two negative numbers multiplied or divided by each other makes a positive)

x=5