Question

Debra received a $70 gift for a coffee store. She used it in buying some coffee that coast $7.64 per pound. After buying the coffee, she $31.80 left on her card. How pounds of coffee did she buy?

Answer 1

5

Explanation:

If c represents the number of pounds of coffee Debra bought, her total value is ...

7.64c +31.80 = 70

c = (70 -31.80)/7.64 = 5 . . . . solve for c

Debra bought 5 pounds of coffee.