vbucks72
24.06.2019 •
Mathematics
Rachel received a $90 gift card for a coffee store. she used it in buying some coffee that cost $7.74 per pound. after buying the coffee, she had $66.78 left on her card. how many pounds of coffee did she buy?
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Ответ:
3 pounds
Step-by-step explanation:
Ответ:
16 times
Step-by-step explanation:
if square A = x
square B = 4x
area of square A = x²
area of square B = 4x × 4x
=16x²