Purchase 808

Someone spent 1/8 of their money on writing paper and three times as much on stamps. He still has 80 hours left. How many pennies did he have before the purchase?

Correct answer:

n =  160

Step-by-step explanation:

8n+83 n+80=n  n/8+3/8 n+80=n  4n=640  n=4640=160  n=160

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