document.write( "Question 678406: Lenny's average score after 3 tests is 88. What score on the 4th test would bring Lenny's average up to exactly 90?
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Algebra.Com's Answer #421350 by ReadingBoosters(3246)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "x = 3(88) = 264 points on first three tests \n" ); document.write( "... \n" ); document.write( " \n" ); document.write( "264+y = 4(90) \n" ); document.write( "y = 360 - 264 \n" ); document.write( "y = 96 points needed on the fourth test \n" ); document.write( "..................... \n" ); document.write( "Delighted to help. \n" ); document.write( "-Reading Boosters \n" ); document.write( "Website: www.MyHomeworkAnswers.com \n" ); document.write( "Wanting for others what we want for ourselves. \n" ); document.write( " \n" ); document.write( " |