document.write( "Question 985090: Lisa recorded her first 4 scores in a Math test. 86%,94%,78%,97%. In order to get an A She needs to have an average of 90%. What must she get on her 5th test to get an A? \n" ); document.write( "
Algebra.Com's Answer #605942 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "To average 90 over 5 scores, the sum of the scores must be (5 x 90)=450 \n" ); document.write( "86+94+78+97=355 \n" ); document.write( "450-355=95 \n" ); document.write( "ANSWER: She needs 95 on her fifth test to average 90. \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( " |