SOLUTION: How many gallons of a 60% antifreeze solution must be mixed with 70 gallons of 25 ​% antifreeze to get a mixture that is 50% antifreeze?

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Question 1165238: How many gallons of a 60% antifreeze solution must be mixed with 70 gallons of 25
​% antifreeze to get a mixture that is 50% antifreeze?
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
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How many gallons of a 60% antifreeze solution must be mixed with 70 gallons of 25
​% antifreeze to get a mixture that is 50% antifreeze?
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How many gallons, v of a H% antifreeze solution must be mixed with G gallons of L​% antifreeze to get a mixture that is T% antifreeze?
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Hv%2BLG=T%28v%2BG%29
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Hv%2BLG=Tv%2BTG
Hv-Tv=TG-LG
%28H-T%29v=G%28T-L%29
highlight%28v=G%28%28T-L%29%2F%28H-T%29%29%29
substitute your given values and evaluate v.