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16 December, 06:51

How many gallons of 20% moonshine and how many gallons of 30% moonshine have to be mixed together to make 100 gallons of 28% moonshine? x = gallons of 20% moonshine y = gallons of 30% moonshine

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  1. 16 December, 10:50
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    20 and 80

    Step-by-step explanation:

    x+y = 100

    0.2x+0.3y = 0.28*100

    0.2x+0.3 * (100-x) = 28 0.2x - 0.3x + 30 = 28 0.1x = 2

    x = 20 ⇒ y = 80
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