document.write( "Question 1017262: A student missed 7 questions on her science quiz and received a 79%, if all problems were equal value how many problems were on the quiz \n" ); document.write( "

Algebra.Com's Answer #633616 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+n+\"$ = number of problems on the quiz
\n" ); document.write( " $\"+n+-+7+\"$ is the number the student got right
\n" ); document.write( "---------------
\n" ); document.write( "I can say:
\n" ); document.write( " $\"+%28+n+-+7+%29+%2F+n+=+.79+\"$
\n" ); document.write( " $\"+n+-+7+=+.79n+\"$
\n" ); document.write( " $\"+n+-+.79n+=+7+\"$
\n" ); document.write( " $\"+.21n+=+7+\"$
\n" ); document.write( " $\"+n+=+33.333+\"$
\n" ); document.write( "This didn't come out a whole number
\n" ); document.write( "I guess there were 33 questions \n" ); document.write( "

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