jakester00792
29.01.2020 •
Mathematics
Benny has a total of 64 quarters and pennies in his pocket. these coins total $4.00 how many pennies are in benny's pocket
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Ответ:
f(a) = 2a-1, 3f(a) = 3(2a-1) = 15 -> a=2 so f(2a)=f(4)=7