SOLUTION: I need some help on how to solve a mixture solving problem. How many gallons of 65% antifreeze and how many gallons of 20% antifreeze should be mixed to obtain 50 gallons of a

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: I need some help on how to solve a mixture solving problem. How many gallons of 65% antifreeze and how many gallons of 20% antifreeze should be mixed to obtain 50 gallons of a       Log On


   



Question 100993: I need some help on how to solve a mixture solving problem.
How many gallons of 65% antifreeze and how many gallons of 20% antifreeze should be mixed to obtain 50 gallons of a 56% mixture of antifreeze?
Thank you!

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
x(65%)+(50-x)(20%)=50(56%) ... .65x+10-.2x=28 ... .45x=18 ... x=40

40 gal of 65% ... 10 gal of 20%