SOLUTION: Mary has $5.75 in nickels and quarters. If she has 5 more quarters than nickels, how many of each coin does she have? Write a system of equation to help you figure this out.
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Question 955848: Mary has $5.75 in nickels and quarters. If she has 5 more quarters than nickels, how many of each coin does she have? Write a system of equation to help you figure this out. Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Mary has $5.75 in nickels and quarters. If she has 5 more quarters than nickels, how many of each coin does she have? Write a system of equation to help you figure this out.
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The hard way (not too hard):
5n + 25q = 575
q = n + 5
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The easy way:
Without the "5 more quarters" she has 575 - 125 = 450 cents.
Each pair of 1q & 1n = 30 cents
450/30 = 15 pairs.
--> 15 nickels & 20 quarters
