josephmichael josephmichael

12-04-2017
Mathematics

contestada

how much pure antifreeze must be added to 12 gallons of 10% antifreeze to make 70% antifreeze solution

Respuesta :

cutelion918 cutelion918

12-04-2017

(0.10 x 12) + 1.00 y = .5 (12 + y)

1.2 + 1.00 y = 6 + .5 y

.5 y = 4.8

y = 9.6 gallons

The answer is D

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