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A coin bank contains only pennies and nickels and has a total value of $17.00. If there are 1,140 coins, how many nickels does he have?

A coin bank contains only pennies and nickels and has a total value of $17.00. If there are 1,140 coins, how many nickels does he have?
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A coin bank contains only pennies and nickels and has a total value of $17.00. If there are 1,140 coins, how many nickels does he have?

User Doron Brikman
by
9.0k points

1 Answer

2 votes
n=5.6/.04
n=140 the number of nickels.
1140-140=1000 pennies.
proof:
.01*1000+.05*140=17
10+7=17
17=17
User DeathByTensors
by
8.2k points
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