SOLUTION: how many gallons of a 50% antifreeze solution must be mixed with 90 gallons of 15% antifreeze to get a mixture that is 40% antifreeze

SOLUTION: how many gallons of a 50% antifreeze solution must be mixed with 90 gallons of 15% antifreeze to get a mixture that is 40% antifreeze

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Question 206188: how many gallons of a 50% antifreeze solution must be mixed with 90 gallons of 15% antifreeze to get a mixture that is 40% antifreeze
Answer by Marth(57) (Show Source): You can put this solution on YOUR website!
You have 90 gallons of a 15% antifreeze solution.
let x = the number of gallons of 50% antifreeze solution

Solve for x.

x = 225 gallons
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