SOLUTION: help me please with this problem too step by step:( Lupe's mother paid $7.40 to buy juice for the 14 members of Lupe's softball team. If a bottle of orange juice costs $.55 and a b

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Question 171066: help me please with this problem too step by step:( Lupe's mother paid $7.40 to buy juice for the 14 members of Lupe's softball team. If a bottle of orange juice costs $.55 and a bottle of apple juice costs $.45 hot many of each type did she buy?)
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
O+A=14 O=14-A
.55O+.45A=7.40
.55(14-A)+.45A=7.40
7.70-.55A+.45A=7.40
-.1A=7.40-7.70
-.1A=-.30
A=-.30/-.1
A=3 IS THE NUMBER OF APPLE JUICES BOUGHT.
O=14-A
O=14-3
O=11 IS THE NUMBER OF ORANGE JUICES BOUGHT.
PROOF:
.55*11+.45*3=7.40
6.05+1.35=7.40
7.40=7.40