document.write( "Question 1084173: Christopher has completed three mathematics tests. his mean mark is 69%. what percentage mark does he have to get in his next test to increase the mean to 70%? \n" ); document.write( "
Algebra.Com's Answer #698244 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "73 \n" ); document.write( " |