Question 925532: Juan has 15 coins, all nickels and dimes. This collection of coins is worth 90 cents. How many nickels and dimes are there? Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! x = nickels
y = dimes
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x + y = 15
5x + 10y = 90
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put the system of linear equations into standard form
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x + y = 15
5x + 10y = 90
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solution:
x = nickels = 12
y = dimes = 3
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