document.write( "Question 454510: The capacity of an elevator is either 20 childern or 15 adults. If 12 childern are currently in the elevator,how many adults can still get in? \n" ); document.write( "

Algebra.Com's Answer #312116 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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The capacity of an elevator is either 20 childern or 15 adults.
\n" ); document.write( "If 12 children are currently in the elevator, how many adults can still get in?
\n" ); document.write( ":
\n" ); document.write( "Let a = number of adults that can get in
\n" ); document.write( "Let 1 = a full elevator
\n" ); document.write( " $\"12%2F20\"$ + $\"a%2F15\"$ = 1
\n" ); document.write( "multiply by 60 to clear the denominators, results
\n" ); document.write( "3(12) + 4a = 60
\n" ); document.write( "36 + 4a = 60
\n" ); document.write( "4a = 60 - 36
\n" ); document.write( "4a = 24
\n" ); document.write( "a = $\"24%2F4\"$
\n" ); document.write( "a = 6 adults can get in with the 12 children (If they want to) \n" ); document.write( "

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