SOLUTION: A candy mixture is created with 2 types of candy, one costing $4 per pound and the other $3.50 per pound. How much of each type is needed for a 5 pound box that costs $18?

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Question 1011242: A candy mixture is created with 2 types of candy, one costing $4 per pound and the other $3.50 per pound. How much of each type is needed for a 5 pound box that costs $18?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x for cheap
y for expensive
system%28x%2By=5%2C%283.5x%2B4y%29=18%29------one equation accounts for material quantities and other accounts for cost of the mixture.

You can use some Elimination if try the system this way:
system%284x%2B4y=20%2C3.5x%2B4y=18%29

That gives you x%2F2=2,
highlight%28x=4%29.