document.write( "Question 901582: A student in an algebra course has test scores of 71, 90, 79, and 83. What score on the next test will raise the student's average to 81? \n" ); document.write( "
Algebra.Com's Answer #546790 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A student in an algebra course has test scores of 71, 90, 79, and 83. What score on the next test will raise the student's average to 81? \n" ); document.write( "------- \n" ); document.write( "Assume 81 is the mean:: \n" ); document.write( "71 is below by 9 \n" ); document.write( "90 is above by 9 \n" ); document.write( "79 is below by 2 \n" ); document.write( "83 is above by 2 \n" ); document.write( "----- \n" ); document.write( "The 1st four tests have mean = 81 \n" ); document.write( "---- \n" ); document.write( "Ans:: The student needs an 81 on the next test. \n" ); document.write( "========== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |