# Math

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An elevator, when full, holds 20 children or 15 adults. If 12 children are on the elevator, how many adults can still get on? Use an algebraic equation to solve this problem.

• Math -

Let x = # of children and y = # of adults. The sum of "fraction of capacity" must equal 1.
x/20 + y/15 = 1
12/20 + y/15 = 1
y/15 = 2/5
y = 30/5 = 6

• Math -

It makes sense...Thank you DRWLS

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