document.write( "Question 682155: a pupil's average for five test is 84%. how many must he get in his sixth test so that his average on six tests will be 87%? \n" ); document.write( "
Algebra.Com's Answer #423057 by stanbon(75887) ![]() You can put this solution on YOUR website! a pupil's average for five test is 84%. how many must he get in his sixth test so that his average on six tests will be 87%? \n" ); document.write( "----- \n" ); document.write( "Equation: \n" ); document.write( "Average = (5*84+x)/6 = 87 \n" ); document.write( "----- \n" ); document.write( "(420+x) = 522 \n" ); document.write( "x = 102 \n" ); document.write( "Note: He cannot average 87 for 6 tests. \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |