An elevator when full holds 20 kids or 15 adults. If 12 kids are on the elevator how many adults can still get on. I need to use an algebraic equation/expression to solve this word problem..I need step by step solutions to explain it...Thank you...

Answer 1

Set up a proportion
20 kids/15 adults = 12 kids/X adults
cross multiply
X=9

Answer 2

Thank you...I received several different ways to answer this problem with different answers......