document.write( "Question 681487: A student missed 7 problems on a English test and received a grade of 66%. If all the problems were of equal value, how many problems were on the test? Round your answer to the nearest integer. \n" ); document.write( "

Algebra.Com's Answer #422674 by MathMan88(14) $\"\"$ $\"About$

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Setup Equation using T and total number of problems and (.66 comes converting % to decimal) 66% divide by 100)
\n" ); document.write( " $\"%28T-7%29%2FT+=+.66\"$
\n" ); document.write( "Multiply both sides by T
\n" ); document.write( " $\"T-7=.66T\"$
\n" ); document.write( "Add 7 to both sides and subtract .66T from both sides
\n" ); document.write( " $\".34T=7\"$
\n" ); document.write( "divide both sides by .34
\n" ); document.write( "T=20.588
\n" ); document.write( "Round Answer
\n" ); document.write( "21
\n" ); document.write( "Total number of problems on test is 21. \n" ); document.write( "

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