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John has 5 quarters and David has 5 dimes. John owes David 35 cents. John should give David m quarters and John should get n dimes from David so that John has paid his debt exactly. What is the value of m + n?

 Jun 1, 2020
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Wouldn't 3 and 4 work?

 

John should give David 3 quarters =0.75 cents and should get 4 dimes =0.75 - 0.40 =0.35 cents that David owes John. So: m + n = 3 + 4 =7

 Jun 1, 2020

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