Posted by Anonymous on .
john has$1.70 . he has 3 more dimes than quarter.

calculus 
bobpursley,
Calculus? You are dreaming.
.1D+.25Q=1.70
d3=Q
d=Q+3
.1(Q+3)+.25Q=1.70
.35Q=1.70.3
Q= 1.40/.35 = 4 D= 7
Your teacher is too easy.