document.write( "Question 67291: A teacher gives a final exam and the scores range from 40 to 80. The teacher decides to scale the exam in order to make the scores range from 60 to 90. Let x represent the original score and let y represent a converted score.
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document.write( " What will the original score of 45 become? Round the answer to the nearest whole number.
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Algebra.Com's Answer #47893 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The original grades have a range of 80-40=40 \n" ); document.write( "The converted range is 90-60=30 \n" ); document.write( "---------------- \n" ); document.write( "to convert the range of 40 to one of 30 \n" ); document.write( "mltiply as follows: (30/40)(40)=3/4(40)=0.75(40)=30 \n" ); document.write( "So the conversion factor is 0.75 \n" ); document.write( "--------------- \n" ); document.write( "But the least score must be 60 \n" ); document.write( "So the equation is new score= (0.75)(old score) + 60 \n" ); document.write( "--------- \n" ); document.write( "To convert a score of 45 proceed as follows: \n" ); document.write( "new score = 0.75(45) + 60 \n" ); document.write( "new score = 33.75 + 60 = 93.75 \n" ); document.write( "Rounded the new score = 94 \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |