SOLUTION: How many gallons of 65% antifreeze solution and a 35% antifreeze solution must be mixed to obtain 15 gallons of 53% antifreeze solution?
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Question 499131: How many gallons of 65% antifreeze solution and a 35% antifreeze solution must be mixed to obtain 15 gallons of 53% antifreeze solution? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! percent percentage ---------------- quantity
antifreeze I 65 ---------------- x gal
antifreeze II 35 ---------------- 15 - x gal
Mixture 53.00% ---------------- 15
65 x + 35 ( 15 - x ) = 53 * 15
65 x + 525 - 35 x = 795
65 x - 35 x = 795 - 525
30 x = 270
/ 30
x= 9 gal 65.00% antifreeze I
6 gal 35.00% antifreeze II
