document.write( "Question 193745: A student gets an 86% on one test and 73% on the second test. What does the student need to get on the third exam to stay at a B (83%)?
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Algebra.Com's Answer #145422 by user_dude2008(1862) ![]() You can put this solution on YOUR website! A student gets an 86% on one test and 73% on the second test. What does the student need to get on the third exam to stay at a B (83%)?\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(86+73+x)/3>=83\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(159+x)/3>=83\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "159+x>=83(3)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "159+x>=249\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x>=249-159\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x>=90\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Ans: Student needs 90% or better. \n" ); document.write( " |