SOLUTION: Photo Shop A charges $1.60 to develop a roll of film plus $0.11 for each print. Photo Shop B charges $1.20 to develop a roll of film plus $0.13 for each print. For how many prints

Question 126623: Photo Shop A charges $1.60 to develop a roll of film plus $0.11 for each print. Photo Shop B charges $1.20 to develop a roll of film plus $0.13 for each print. For how many prints will the amount spent at each photo shop be the same? What will be that amount?
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
1.6+.11X=1.2+.13X
.11X-.13X=1.2-1.6
-.02X=-.4
X=-.4/-.02
X=20 IS THE NUMBER OF PRINTS WHEN THE COST IS EQUAL.
1.6+.11*20=1.6+2.2=3.8
1.2+.13*20=1.2+2.6=$3.80 TOTAL COST OF BOTH SHOPS.
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