SOLUTION: the capacity of an elevator is either 20 children or 15 adults. if 10 children are currently on the elevator, how many adults can fit?

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Question 687508: the capacity of an elevator is either 20 children or 15 adults. if 10 children are currently on the elevator, how many adults can fit?
Answer by Stitch(470) About Me  (Show Source):
You can put this solution on YOUR website!
You can look at this problem as a ratio
%2820+Children+%2F+15+Aduls%29+=+%2810+Children+%2F+X+Adults%29
Cross multiply
20+%2A+X+=+15+%2A+10
Simplify
20X+=+150
Divide both sides by 20
highlight%28X+=+7.5%29
Only 7 adults can fit