document.write( "Question 206917This question is from textbook
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document.write( ": A professor announces that course grades will be computted by taking 40% of a student's project score (0-100 points) and adding 60% of the student's final exam score (0-100 points). If a student gets an 86 on the project, what scores can she get on the final exam to get a course grade of at least 90? \n" );
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Algebra.Com's Answer #156413 by RAY100(1637)![]() ![]() ![]() You can put this solution on YOUR website! Let P = project grade,,,and E = Exam grade \n" ); document.write( ". \n" ); document.write( "40% * P + 60% * E = 90 \n" ); document.write( ". \n" ); document.write( ".40*86 + .6*E = 90 \n" ); document.write( ". \n" ); document.write( "34.4 + .6*E = 90 \n" ); document.write( ". \n" ); document.write( ".6E = 55.6 \n" ); document.write( ". \n" ); document.write( "E = 92.67 \n" ); document.write( ". \n" ); document.write( "Check,,,.4(86) + .6(92.67 = 90,,,,,ok \n" ); document.write( ". \n" ); document.write( " |