
Robert F. answered 07/22/15
Tutor
5
(10)
A Retired Professor to Tutor Math and Physics
N1=number of $1 coins.
N2=number of $2 coins.
N1+N2=187
N1+2N2=251
Abdul K.
asked 07/22/15Robert F. answered 07/22/15
A Retired Professor to Tutor Math and Physics
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