SOLUTION: A box contains $7.70 in nickels, dimes, and quarters. There are 45 coins in all, and the sum of the numbers of nickels and dimes is 3 less than the number of quarters. How many coi
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Question 1173861: A box contains $7.70 in nickels, dimes, and quarters. There are 45 coins in all, and the sum of the numbers of nickels and dimes is 3 less than the number of quarters. How many coins of each kind are there?
nickels
dimes
quarters
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Look at the last two equations.
;
---------------the quarters
---
---
:
and you can find n.
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