Question 836060: Cayla has 30 dimes and nickels in her purse worth $2.35. How many dimes and nickels does she have in her purse? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Cayla has 30 dimes and nickels in her purse worth $2.35. How many dimes and nickels does she have in her purse?
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Quantity:: n + d = 30 coins
Value::: 5n+10d = 235 cents
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Modify for elimination::
n + d = 30
n + 2d = 47
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Subtract and solve for "d":
d = 17 (# of dimes)
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n + 17 = 30
n = 13 (# of nickels)
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Cheers,
Stan H.
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