document.write( "Question 56811: This says to use systems of equations to solve: I need help. Thanks!\r
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document.write( "There is an initiation fee to join the Pine River Country Club, as well as monthly dues. The total cost after 7 months' membership will be $3025, and after 18 mos, $3850. Find both the initiation fee and the monthly dues. \n" );
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Algebra.Com's Answer #38564 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! There is an initiation fee to join the Pine River Country Club, as well as monthly dues. The total cost after 7 months' membership will be $3025, and after 18 mos, $3850. Find both the initiation fee and the monthly dues. \n" ); document.write( "0 solutions \n" ); document.write( "--------------------- \n" ); document.write( "Let \"d\" be the dues per month and i be the initiation fee: \n" ); document.write( "Cost(7 months) = i+7d=3025 \n" ); document.write( "Cost(18 months)= i+18d=3850 \n" ); document.write( "1st: i+7d=3025 \n" ); document.write( "2nd: i+18d=3850 \n" ); document.write( "Subtract 1st from 2nd to get: \n" ); document.write( "3rd: 11d=825 \n" ); document.write( "dues= $75.00 per month \n" ); document.write( "Substitue this value of d into 1st to solve for \"i\": \n" ); document.write( "i+7(75)=3025 \n" ); document.write( "i= $2500.00 (this is the initiation fee) \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |