SOLUTION: Sarah is painting her room white and her living room blue. She spends a total of $132 on 5 cans of paint. The white paint costs $24 per can and the blue paint costs $28 per can.

Question 693022:
Sarah is painting her room white and her living room blue. She spends a total of $132 on 5 cans of paint. The white paint costs $24 per can and the blue paint costs $28 per can. How many cans of paint did Sarah buy?
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
X+Y=5 OR X=5-Y
24X+28Y=132
24(5-Y)+28Y=132
120-24Y+28Y=132
4Y=132-120
4Y=12
Y=12/4
Y=3 ANS. FOR THE NUMBER OF THE $28 PAINT.
X=5-3
X=2 ANS. FOR THE NUMBER OF THE $24 PAINT.
PROOF:
24*2+28*3=132
48+84=132
132=132
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