Ivanna received a $90 gift card for a coffee store. She used it in buying some coffee that cost $7.68 per pound. After buying th
e coffee, she had $66.96 left on
her card. How many pounds of coffee did she buy?
1 answer:
Answer:
3 pounds
u have to use y=mx+b
90=7.68x+66.96
subtract the 66.96 from the 90
then just divide
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