Grant plans to evaporate enough water from 22 gallons of a 16% ammonia solution to make a 24% ammonia solution. Which equation can he use to find n, the number of gallons of water he should remove?

Question

campayne · Answer

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owen3 · Answer

I would make a fraction. The denominator is the total water that is left after evaporating.

campayne · Answer

sigh.. but.. how do i... just... WUT?

owen3 · Answer

You know how in a ratio fraction, the numerator is the "part" and the denominator is the "whole".

owen3 · Answer

The numerator will be the ammonia.