# calculus

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john has\$1.70 . he has 3 more dimes than quarter.

• calculus -

Calculus? You are dreaming.

.1D+.25Q=1.70
d-3=Q
d=Q+3
.1(Q+3)+.25Q=1.70
.35Q=1.70-.3
Q= 1.40/.35 = 4 D= 7

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