Question

PLEASE HELP

Jina received a $70 gift cards for a coffee store. She used it in buying some coffee that cost $8.64 per pound. After buying the coffee, she had $26.80 left on her card. How many pounds of coffee did she buy?

Answer 1

Answer: She bought 5 pounds of coffee

Explanation:

This situation can be represent by the equation

70 - 8.64 x = 26.80 where x is the number of coffee she bought. solve for x

-70 -70

-8.64x = -43.20

x = 5

Answer 2

If I'm correct she bought 5 pounds of coffee.

Explanation:

$70 (gift card)

-$26.80 (remainder on g.c.)

= $43.20 ($ spent on money)

$43.20/ $8.64 = 5

(remainder)/ cost per lb. = lbs of coffee bought