document.write( "Question 663474: Johns overall quiz average for 8 quizzes is 89.25. At the midterm of the quarter his average on the first 5 quizzes was 88.2. His parents made an agreement with John that if his average on the last three quizzes was 90 or better they would buy him a new iPod. Based on the information should johns parent but him the iPod? Show your work and explain how you arrived at your answer
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #412786 by jerryguo41(197)\"\" \"About 
You can put this solution on YOUR website!
Quiz average is calculated by adding all quizzes and dividing by the number of quizzes. \r
\n" ); document.write( "\n" ); document.write( "Thus
\n" ); document.write( "\"8%2A89.25=714\" gives the total number of percentage points obtained on the eight quizzes.\r
\n" ); document.write( "\n" ); document.write( "\"5%2A88.2=441\" gives the average on the fist five which means\r
\n" ); document.write( "\n" ); document.write( "\"714-441=273\" is the total percentage points on of the last three quizzes\r
\n" ); document.write( "\n" ); document.write( "Finally the average is the total points divided by the number of quizzes(3).\r
\n" ); document.write( "\n" ); document.write( "\"273%2F3=91\"\r
\n" ); document.write( "\n" ); document.write( "John should get his iPod from his parents
\n" ); document.write( "
\n" );