document.write( "Question 147576: The members of a flying club plan to hare equally the cost of a $2000,000 airplane. The members want to find five more people to join the club so tha the cost per person will decrease by $2000. How many members are currently in the club? \n" ); document.write( "
Algebra.Com's Answer #107969 by stanbon(75887)\"\" \"About 
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The members of a flying club plan to hare equally the cost of a $2000,000 airplane.
\n" ); document.write( "Old average cost: 2,000,000/x
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\n" ); document.write( "The members want to find five more people to join the club so tha the cost per person will decrease by $2000.
\n" ); document.write( "New average cost: 2,000,000/(x+5)
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\n" ); document.write( " How many members are currently in the club?
\n" ); document.write( "EQUATION:
\n" ); document.write( "Old - New = 2000
\n" ); document.write( "2,000,000/x - 2000,000/(x+5) = 2000
\n" ); document.write( "Divide thru by 2000 to get:
\n" ); document.write( "1000/x - 1000/(x+5) = 1
\n" ); document.write( "Multiply thru by x(x+5) to get:
\n" ); document.write( "5000 = x(x+5)
\n" ); document.write( "x^2+5x-5000 = 0
\n" ); document.write( "(x-20)(x+25) = 0
\n" ); document.write( "x = 20 (original # in the club)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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