document.write( "Question 1046611: On the second exam, the student and exercise 33 earns a score of 60% on a 20 question test. This time the instructor allows him to work 20 extra problems to improve his score. How many must he get right to raise his grade to 70%? \n" ); document.write( "
Algebra.Com's Answer #662125 by Boreal(15235) You can put this solution on YOUR website! He got 12 right out of 20. That is 60% \n" ); document.write( "With 20 more questions, his new total will be 40, and 70% of 40 is 28. He would have to get 16 questions right. \n" ); document.write( "He has a 60% average with 20; if he wants to have a 70% average, he must get 80% to balance it out. \n" ); document.write( " \n" ); document.write( " |