SOLUTION: a coin purse contains a mixture of 15 coins in nickles and dimes. the coins have a total value of $ 1.10. determine the number of nickles and the number of dimes in the purse
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Question 279606: a coin purse contains a mixture of 15 coins in nickles and dimes. the coins have a total value of $ 1.10. determine the number of nickles and the number of dimes in the purse Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! let the number of nickels be x
the number of dimes will be 15-x
5x+10(15-x) =110 cents
5x+150-10x=110
-5x=-40
x=-40/-5
x=8 number of nickels
dimes will be 15-8 = 7 numbers
