SOLUTION: A coin purse contains pennies and dimes. There 4 times as many pennies as dimes in the purse. If the total amount of money in the coin purse is $0.98, how many pennies are in the
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Question 214201: A coin purse contains pennies and dimes. There 4 times as many pennies as dimes in the purse. If the total amount of money in the coin purse is $0.98, how many pennies are in the coin purse? Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! p=4d
.01p+.10d=98
.01*4d+.10d=.98
.04d+.10d=.98
.14d=.98
d=.98/.14
d=7 dimes.
p=4*7=28 pennies.
Proof:
.01*28+.10*7=.98
.28+.70=98
.98=.98
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