document.write( "Question 265133: Jo needs an 85% average on her five math tests. She earned 99%, 85%, 79%, and 88% on her first four tests. What score must she earn on her fifth test in order to have an average of exactly 85% for all five tests? \n" ); document.write( "
Algebra.Com's Answer #195030 by rfer(16322)![]() ![]() ![]() You can put this solution on YOUR website! (99+85+79+88+x)/5=85 \n" ); document.write( "351+x/5=85 \n" ); document.write( "351+x=85*5 \n" ); document.write( "351+x=425 \n" ); document.write( "x=74% \n" ); document.write( " |