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Matthew has a jar of 368 nickels and dimes he has been collecting. The total value ofthe coins is $28.40.  How many coins of each type does Matthew have?

 Mar 4, 2021
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d = # dimes                     value = 10d

n = nickels =   368 - d     value = 5 (368-d)            summed = 2840

 

10d      + 5 (388-d)       = 2840     

                                                  solve for 'd' ...the # of dimes        then       # nickels = 368 - d

 Mar 4, 2021

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