SOLUTION: Perry wants to make 10 gal. of a 58% sugar solution by mixing together a 70% sugar solution and a 40% sugar solution. How much of the 70% sugar solution must he use?

Question 571292: Perry wants to make 10 gal. of a 58% sugar
solution by mixing together a 70% sugar solution
and a 40% sugar solution. How much of the 70%
sugar solution must he use?
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Perry wants to make 10 gal. of a 58% sugar
solution by mixing together a 70% sugar solution
and a 40% sugar solution. How much of the 70%
sugar solution must he use?
**
let x=gal of 70% solution Perry must use
10-x=gal of 40% solution Perry must use
..
70%x+40%(10-x)=58%(10)
.7x+.4-.4x=5.8
.3x=5.4
x=18
ans:
gallons of 70% solution Perry must use=18
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