SOLUTION: Zach has a total of 62 coins, all of which are either dimes or nickels. The total value of the coins is $5.20. Find the number of each type of coin.
x + y = 62
10x + 5y = 520
Question 721080: Zach has a total of 62 coins, all of which are either dimes or nickels. The total value of the coins is $5.20. Find the number of each type of coin.
x + y = 62
10x + 5y = 520 Don't know what else to do or if I am even going in the right direction. Little help! Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! x + y = 62
10x + 5y = 520
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10x + 10y = 620
10x + 5y = 520
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Subtract and solve for "y":
5y = 100
y = 20 (# of nickels)
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Solve for "x" using x + y = 62
x + 20 = 62
x = 42 (# of dimes)
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Cheers,
Stan H.
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