document.write( "Question 27357: 45% of what is 99? \n" ); document.write( "

Algebra.Com's Answer #14849 by whty89(20) $\"\"$ $\"About$

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to solve this i set it up as a proportion
\n" ); document.write( "I use (is/of) = (%/100)
\n" ); document.write( "1.) whatever comes after IS goes on top of the first fraction. (99)
\n" ); document.write( "2.) whatever comes after OF goes on the bottom of the 1st fraction. that is what we're finding swo just put x.
\n" ); document.write( "3.) set that equal to the %/100
\n" ); document.write( "4.) it should look like this 99 = 45
\n" ); document.write( " x 100
\n" ); document.write( "5.) now you just cross multiply.
\n" ); document.write( "6.) 99 x 100 = 45x
\n" ); document.write( "7.) 9900 = 45x
\n" ); document.write( "8.) divide by 45, x equals 220
\n" ); document.write( "45% of 220 is 99 \n" ); document.write( "

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