document.write( "Question 4194: Jason got a 7 5 on a math test. He was allowed to go to the math lab and take a retest. He increased his score to 84. What was the percent of increase? \n" ); document.write( "

Algebra.Com's Answer #2447 by rapaljer(4671) $\"\"$ $\"About$

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Percent of increase always equals the amount of increase divided by the ORIGINAL amount.\r
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\n" ); document.write( "\n" ); document.write( "Amount of increase = 84-75 which is 9.\r
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\n" ); document.write( "\n" ); document.write( "Percent of increase = $\"9%2F75+\"$ which reduces to $\"3%2F25\"$ . Percent means \"per hundred\", so it's helpful to get the denominator of the fraction up to 100. You can do that by multiplying numerator and denominator by 4:
\n" ); document.write( " $\"+%283%2F25%29+%2A%284%2F4%29+=+12%2F100\"$ or 12 %.\r
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\n" ); document.write( "\n" ); document.write( "R^2 at SCC \n" ); document.write( "

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