Question

Rachel received a $70 gift card for a coffee store. She used it in buying some coffee that cost $8.13 per pound. After buying the coffee, she had $21.22 left on her card. How many pounds of coffee did she buy?

Answer 1

She bought 6 pounds of coffee

Answer 2

She started with $70.
She had $21.22 left.
She spent: $70 - $21.22 = $48.78.
Coffee costs $8.13/lb.
$48.78/($8.13/lb) = 6 lb

She bought 6 lb of coffee.