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OpenStudy (anonymous):
Your piggy bank has a total of 20 coins in it; some are dimes and some are nickels. If you have a total of $1.25, how many nickels do you have? 15 10 5 20
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OpenStudy (anonymous):
help
OpenStudy (rulnick):
10d + 5n = 125 d+n = 20
OpenStudy (rulnick):
d=5 and n=15 is the answer
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