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Asked Aug 21, 2019
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How many quarts of pure anti freeze must be added to 6 quarts of a 10% anti freeze solution to obtain a 60% anti freeze solution

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Expert Answer

Step 1

Let x denote the amount of pure antifreeze that must be added to 6 quarts of a 10% antifreeze solution so that 60% of antifreeze solution is obtained.

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0.6+x0.6 6 x 0.6+x 0.6(6+x 0.6 x 3.60.6x x 0.6x 3.6-0.6

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Step 2

On further simpli...

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0.4x 3 x = 7.5

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