document.write( "Question 832434: A student missed 5 problems on a history test and received a grade of 89% if all the problems were of equal value, how many problems were on the test. round off your answer to the nearest integer \n" ); document.write( "

Algebra.Com's Answer #502043 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+x+\"$ = the number of problems on the test
\n" ); document.write( " $\"+x+-+5+\"$ is the number answered correctly
\n" ); document.write( " $\"+%28+x-5+%29+%2F+x+=+.89+\"$
\n" ); document.write( " $\"+x+-+5+=+.89x+\"$
\n" ); document.write( " $\"+.11x+=+5+\"$
\n" ); document.write( " $\"+x+=+5%2F.11+\"$
\n" ); document.write( " $\"+x+=+45.45+\"$
\n" ); document.write( "There were 45 problems on the test
\n" ); document.write( "check:
\n" ); document.write( "The student missed 5, so 40 were answered correctly
\n" ); document.write( " $\"+40%2F45+=+.888+\"$
\n" ); document.write( "close enough\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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