document.write( "Question 151527: what percent of 400 is 320 \n" ); document.write( "
Algebra.Com's Answer #111392 by jim_thompson5910(35256)\"\" \"About 
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Let x=unknown percentage in decimal form\r
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\n" ); document.write( "\n" ); document.write( "So \"what percent of 400 is 320\", translates to \"x%2A400=320\" which could also look like \"400x=320\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=%28320%29%2F%28400%29\" Divide both sides by \"400\" to isolate \"x\".\r
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\n" ); document.write( "\n" ); document.write( "\"x=4%2F5\" Reduce.\r
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\n" ); document.write( "\n" ); document.write( "\"x=0.8\" Convert the fraction to decimal form.\r
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\n" ); document.write( "\n" ); document.write( "Now multiply 0.8 and 100 to get \"0.8%2A100=80\"\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
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\n" ); document.write( "\n" ); document.write( "So the unknown percentage is 80%
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