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OpenStudy (anonymous):
Your piggy bank has a total of 18 coins in it; some are dimes and some are nickels. If you have a total of $1.40, how many nickels do you have? 14 12 10 8
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OpenStudy (ankit042):
The approach to start this problem is simple, Let us assume there are x nickels coins Number of dimes 19-x As per the question total amount is $1.40 .10*(19-x)+0.05*(x) = 1.40 38-2x+x = 28 x =10 Number of Nickels are 10
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