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ben raised 43.50 by selling 12 rolls of solid paper and 9 rolls of printed paper. joel raised 51.50 by selling 8 rolls of solid paper and 15 rolls of printed parper. find the cost of each type of wrapping paper.



Answer :

Set up two equations
43.5 = 12x + 9y
51.5 = 8x + 15y 
Solve 
x = 1.75
y = 2.5

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