Question

Martina recieved a $80 gift card for a coffee store. She used it in buying some coffee that cost $8.37 per pound. After buying the coffee she had $29.78 left on her card how many pounds of coffee did she buy?

Answer 1

Explanation:

80-29.78=50.22

50.22÷8.37

= 6

Answer 2

Total money = $80

Let x be the no of pounds

Cost of one pound = $8.37

Money spent = 80-29.78=50.22

But 8.37x is also the money spent

Implies

8.37x=50.22

X=50.22÷8.37=6 is the no of pounds