document.write( "Question 350606: At Tehachapi College the tuition has increased 20% for each of the last two years. If tuition this year is $6,000 what was the tuition 2 years ago? Round to nearest dollar.
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Algebra.Com's Answer #250599 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! At Tehachapi College the tuition has increased 20% for each of the last two years. If tuition this year is $6,000 what was the tuition 2 years ago? Round to nearest dollar. \n" ); document.write( ". \n" ); document.write( "Let x = tuition before increase \n" ); document.write( ". \n" ); document.write( "One year ago: \n" ); document.write( "x+.20x = 6000 \n" ); document.write( "x(1+.20) = 6000 \n" ); document.write( "x(1.20) = 6000 \n" ); document.write( "x = 6000/1.20 \n" ); document.write( "x = $5000 \n" ); document.write( ". \n" ); document.write( "Two years ago: \n" ); document.write( "x(1.20) = 5000 \n" ); document.write( "x = 5000/1.20 \n" ); document.write( "x = 4166.6667 \n" ); document.write( "x = $4167 (solution) \n" ); document.write( " \n" ); document.write( " |