SOLUTION: how many gallons of 90 percent antifreeze solution must be mixed with 100 gallons of 10 percent antifreeze solution to get a mixture that is 80 percent antifreeze
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Question 515163: how many gallons of 90 percent antifreeze solution must be mixed with 100 gallons of 10 percent antifreeze solution to get a mixture that is 80 percent antifreeze
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = gallons of 90% antifreeze needed
In words:
( gallons of antifreeze you end up with ) / ( total gallons of solution ) = 80%
gallons of antifreeze in 10% solution
given:
= total solution
700 gallons of 90% antifreeze are needed
check answer:
OK
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