SOLUTION: How many gallons of a 90​% antifreeze solution must be mixed with 60 gallons of 30​% antifreeze to get a mixture that is 80​% ​antifreeze? U

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Question 1072552: How many gallons of a
90​% antifreeze solution must be mixed with
60 gallons of
30​% antifreeze to get a mixture that is
80​% ​antifreeze? Use the​ six-step method.


Found 2 solutions by Alan3354, josgarithmetic:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
How many gallons of a 90% antifreeze solution must be mixed with 60 gallons of 30% antifreeze to get a mixture that is 80% antifreeze?
----------------
Add G gallons.
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60*30 + G*90 = (60+G)*80

Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
x, how much of the 90% antifreeze to use

%2890%2Ax%2B30%2A60%29%2F%28x%2B60%29=80