Question 940989
a chemist has one solution that is 20% saline and a second that is 65% saline. How many gallons of each should be mixed together to get 120 gallons of a solution that is 50% saline.
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t = 20%
s = 65%
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t + s = 120  (total solution)
20t + 65s = 120*50  (total salt)
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Solve for t & s