document.write( "Question 471144: Test scores:
\n" ); document.write( "Your test scores are 71,75,82,and 86. What is the lowest grade that you can get on the next test and still have an average score of at least 80?\r
\n" ); document.write( "\n" ); document.write( "What I did was: \r
\n" ); document.write( "\n" ); document.write( "5(71+75+82+86+s) is greater than or equal to 5*80
\n" ); document.write( "

Algebra.Com's Answer #323152 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
\n" ); document.write( "Hi
\n" ); document.write( "'Average' = (71+75+82+86+s)/5
\n" ); document.write( "(71+75+82+86+s)/5 ≥ 80
\n" ); document.write( "(71+75+82+86+s)≥ 5*80
\n" ); document.write( " s ≥ 400-314
\n" ); document.write( " s ≥ 86 \n" ); document.write( "
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