Mathematics, 03.05.2020 13:41, sophialoperx
A chemical company makes two brands of antifreeze. The first brand is 45% pure antifreeze, in the second brand is 70% pure antifreeze. in order to obtain 90 gallons of a mixture that contains 60% of pure antifreeze, how many gallons of each brand of antifreeze must be used?
No matter what I do, I cannot figure out this problem.
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A chemical company makes two brands of antifreeze. The first brand is 45% pure antifreeze, in the se...
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