SOLUTION: How many gallons of a 90​% antifreeze solution must be mixed with 70 gallons of 10​% antifreeze to get a mixture that is 80​% ​antifreeze? Use the​ si
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Question 1087050: How many gallons of a 90% antifreeze solution must be mixed with 70 gallons of 10% antifreeze to get a mixture that is 80% antifreeze? Use the six-step method.
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
v, gallons of the 90% antifreeze
Keeping strictly as percents,
Numerator represents pure antifreeze.
Denominator represents amount of mixture.
Right-side number is the target percent wanted.
Solve for v.
-
v=490
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