document.write( "Question 250642: The members of a flying club plan to share equally the cost of a $200,000.00 airplane. The members want to find five more people to join the club so that the cost per person will decrease by $2000.00, How many members are currently in the club?
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Algebra.Com's Answer #182545 by Fombitz(32388) $\"\"$ $\"About$

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Currently let's assume there are N people.
\n" ); document.write( "The cost per person is
\n" ); document.write( " $\"C1=200000%2FN\"$
\n" ); document.write( "Once 5 more people join then the cost per person is then
\n" ); document.write( " $\"C2=200000%2F%28N%2B5%29\"$
\n" ); document.write( "You know that
\n" ); document.write( " $\"C2=C1-2000\"$
\n" ); document.write( "Substitute,
\n" ); document.write( " $\"C2=C1-2000\"$
\n" ); document.write( " $\"%28200000%2F%28N%2B5%29%29=%28200000%2FN%29-2000\"$
\n" ); document.write( " $\"200000N=200000%28N%2B5%29-2000N%28N%2B5%29\"$
\n" ); document.write( " $\"200N=200%28N%2B5%29-2N%28N%2B5%29\"$
\n" ); document.write( " $\"200N=200N%2B1000-2N%5E2-10N\"$
\n" ); document.write( " $\"2N%5E2%2B10N-1000=0\"$
\n" ); document.write( " $\"N%5E2%2B5N-500=0\"$
\n" ); document.write( " $\"%28N%2B25%29%28N-20%29=0\"$
\n" ); document.write( " $\"N-20=0\"$
\n" ); document.write( " $\"N=20\"$
\n" ); document.write( "There are currently 20 people in the club.\r
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