SOLUTION: A mechanic has two antifreeze solutions. One is 70% antinfreeze and the other is 40% antifreeze. How much of each solution should be mixed to make 60 gallons of a solution that is

Question 343289: A mechanic has two antifreeze solutions. One is 70% antinfreeze and the other is 40% antifreeze. How much of each solution should be mixed to make 60 gallons of a solution that is 52% antifreeze?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let A be the amount of 70% antinfreeze, B the amount of 40% antifreeze.
1.
.
.
.

2.
From eq. 1,

Substitute into eq. 2,

gallons
Then from eq. 1,

gallons

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