Homework Help: Math

Posted by Jay on Tuesday, February 26, 2008 at 3:17am.

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 - drwls, Tuesday, February 26, 2008 at 6:03am
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 - Jay, Tuesday, February 26, 2008 at 1:39pm
  It makes sense...Thank you DRWLS

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