document.write( "Question 749364: Hello , could you please help me with this question.
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document.write( "Thank you , my name is John
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document.write( "Email j.callaghan@xtra.co.nz\r
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document.write( "In his first five maths tests this year John had an average score of 8. In his next two tests he
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document.write( "scored 7 and 5 and after his eighth test his average was 7.5. What was his score in the eighth test?
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document.write( "Q4. \n" );
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Algebra.Com's Answer #455934 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Hi John \n" ); document.write( "If the first 5 tests gave an average of 8 \n" ); document.write( "then the totals for the 5 tests were 40 (5 x 8) \n" ); document.write( "If his next two tests scored 7 and 5 then his \n" ); document.write( "total now becomes 52 (40 + 7 + 5). \n" ); document.write( "His eighth test brought his average to 7.5 \n" ); document.write( "so his total of marks was 60 (8 x 7.5) \n" ); document.write( "Taking 52 away from 60 = 8 his score for the eighth test. \n" ); document.write( "Hope this helps mate. \n" ); document.write( ":-) \n" ); document.write( " |