document.write( "Question 1056296: The Extreme Rock Climbing Club planned a climbing expedition. The total cost was $2600$2600, which was to be divided equally among the members going. Prior to the trip, 1010 members decided not to go. If the cost per person increased by $130$130, how many people went on the expedition? \n" ); document.write( "
Algebra.Com's Answer #671452 by josgarithmetic(39621)\"\" \"About 
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The Extreme Rock Climbing Club planned a climbing expedition. The total cost was $2600$2600, which was to be divided equally among the members going. Prior to the trip, 1010 members decided not to go. If the cost per person increased by $130$130, how many people went on the expedition?
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\n" ); document.write( "\n" ); document.write( "Let c be the original number of climbers planning to go.\r
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\n" ); document.write( "\n" ); document.write( "Original PRICE, \"2600%2Fc\" dollars per member;\r
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\n" ); document.write( "\n" ); document.write( "New price if 1010 members decided not to go, \"2600%2F%28c-1010%29\". This is given as 130 dollar per person increase.
\n" ); document.write( "\"highlight_green%282600%2F%28c-1010%29-2600%2Fc=130%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"20%2F%28c-1010%29-20%2Fc=1\"\r
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\n" ); document.write( "\n" ); document.write( "\"20%28c%29-20%28c-1010%29=c%28c-1010%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"20c-20c%2B20200=c%5E2-1010c\"\r
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\n" ); document.write( "\n" ); document.write( "\"20200=c%5E2-1010c\"\r
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\n" ); document.write( "\n" ); document.write( "\"c%5E2-1010c-20200=0\"\r
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\n" ); document.write( "\n" ); document.write( "Check the discriminant.
\n" ); document.write( "\"%281010%29%5E2%2B4%2A20200\"
\n" ); document.write( "\"1020100-80800\"
\n" ); document.write( "\"939300\"----the discriminant....
\n" ); document.write( "\"9393%2A10%5E2\"
\n" ); document.write( "\"3%2A3131%2A10%5E2\"------discriminant plainly is NOT a perfect square and solution of c will NOT be a whole positive number.\r
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\n" ); document.write( "\n" ); document.write( "\"c=%281010%2B-+10%2Asqrt%289393%29%29%2F2\"\r
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\n" ); document.write( "\n" ); document.write( "\"c=202%2B-+5%2Asqrt%289393%29\", the minus form will not work.\r
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\n" ); document.write( "\n" ); document.write( "\"c=202%2B5%2A%2896.9175%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"c=686.6\"\r
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\n" ); document.write( "\n" ); document.write( "Most useful original number of planned climbers were 687 club members.
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