SOLUTION: A chemical company makes two brands of antifreeze. The first brand is 35% pure antifreeze, and the second brand is 60% pure antifreeze. In order to obtain 160 gallons of a mixture
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-> SOLUTION: A chemical company makes two brands of antifreeze. The first brand is 35% pure antifreeze, and the second brand is 60% pure antifreeze. In order to obtain 160 gallons of a mixture
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Question 1149424: A chemical company makes two brands of antifreeze. The first brand is 35% pure antifreeze, and the second brand is 60% pure antifreeze. In order to obtain 160 gallons of a mixture that contains 45% pure antifreeze, how many gallons of each brand of antifreeze must be used? Found 2 solutions by josmiceli, greenestamps:Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = gallons of the 35% antifreeze needed
Let = gallons of the 60% antifreeze needed
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(1)
(2)
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(2)
(2)
(2)
Multiply both sides of (1) by and
subtract (1) from (2)
(2)
(1)
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and
(1)
(1)
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96 gallons of the 35% antifreeze are needed
64 gallons of the 60% antifreeze are needed
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check:
(2)
(2)
(2)
(2)
(2)
OK
