# algebra

Mac's wallett is full of \$5 and \$10 bills. He has 25 bills totaling \$230. How many of each bill does he have?

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2. 👎 0
3. 👁 192
1. Let x: 5 bill
let y: 10 bill
x + y = 25
5x + 10y = 230

5x + 10(25-x) = 230
5x + 250 -10x = 230
-5x = -20
x = 4
y =21

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2. 👎 0
posted by Kuai

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