document.write( "Question 815211: Your test score in science are 83 and 87. What possible scores can you earn on your next test to have a test average between 85 and 90,inclusive? \n" ); document.write( "

Algebra.Com's Answer #490765 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+x+\"$ = your score on the next test
\n" ); document.write( "-------------
\n" ); document.write( "In order to have an 85 average, you need at least:
\n" ); document.write( " $\"+85+=+%28+83+%2B+87+%2B+x+%29+%2F+3+\"$
\n" ); document.write( " $\"+255+=+83+%2B+87+%2B+x+\"$
\n" ); document.write( " $\"+x+%2B+170+=+255+\"$
\n" ); document.write( " $\"+x+=+85+\"$
\n" ); document.write( "----------------
\n" ); document.write( "In order to have an 90 average, you need at least:
\n" ); document.write( " $\"+90+=+%28+83+%2B+87+%2B+x+%29+%2F+3+\"$
\n" ); document.write( " $\"+270+=+83+%2B+87+%2B+x+\"$
\n" ); document.write( " $\"+x+%2B+170+=+270+\"$
\n" ); document.write( " $\"+x+=+100+\"$
\n" ); document.write( "-----------------
\n" ); document.write( "You need to score between 85 and 100 inclusive \n" ); document.write( "

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