SOLUTION: My question is an algebra question....An elevator, when full, holds 20 children or 15 adults. If 12 children are on the elevator, howm many adults can still get on? Use an algebrai

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Question 129654: My question is an algebra question....An elevator, when full, holds 20 children or 15 adults. If 12 children are on the elevator, howm many adults can still get on? Use an algebraic equaition to solve the problem step by step.....Is this like a proportion type question or fraction of capacity question...I am confuse...Please help...Thank you
This problem is from a worksheet my teacher provided. I am not sure where he got it from.
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
X/20+Y/15=1
12/20+Y/15=1
Y/15=1-12/20
Y/15=1-.6
Y/15=.4
Y=15*.4
Y=6 NUMBER OF ADULTS ALLOWED ALONG WITH THE 12 CHILDREN.