document.write( "Question 995309: Your grades are 83, 94, 86 and 91. What grade do you need to earn on your next test to have an average of 90 \n" ); document.write( "
Algebra.Com's Answer #614154 by macston(5194)\"\" \"About 
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\n" ); document.write( "x=score on next test
\n" ); document.write( "Average=(Sum of test scores/number of test scores)
\n" ); document.write( "90=(83+94+86+91+x)/5
\n" ); document.write( "450=354+x
\n" ); document.write( "96=x
\n" ); document.write( ".
\n" ); document.write( "ANSWER: You would need 96 on your next test to average 90.
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