How many gallons of each brand of antifreeze must be used

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A chemical company makes two brands of antifreeze. The first brand is 20% pure antifreeze, and the second brand is 45%pure antifreeze. In order to obtain 160gallons of a mixture that contains 30% pure antifreeze, how many gallons of each brand of antifreeze must be used?

Reference no: EM132012708

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