document.write( "Question 977741: Cory’s average score after 8 tests is 91%. If he gets a 78% on his 9th test what will his new average be? \n" ); document.write( "
Algebra.Com's Answer #599283 by Cromlix(4381)\"\" \"About 
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Hi there,
\n" ); document.write( "If Cory's average score after 8 tests = 91%
\n" ); document.write( "then as a total he has 8 x 91 = 728
\n" ); document.write( "If on his 9th test he gets 78%
\n" ); document.write( "the 728 + 78 = 806
\n" ); document.write( "806/9 = 89.6 new average
\n" ); document.write( "Hope this helps:-)
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