document.write( "Question 144419: My question asks me to show how to convert 8 quarts to gallons using a unit multiplier. (1 gal = 4 qt)
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Algebra.Com's Answer #105165 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
My question asks me to show how to convert 8 quarts to gallons using a unit multiplier. (1 gal = 4 qt)
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document.write( "Put \"8qt\" over \"1\"\r\n" );
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document.write( "\"%28%288qt%29%2F1%29\"\r\n" );
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document.write( "Now we use \"1gal=4qt\" to make a unit fraction, that is,\r\n" );
document.write( "one which equals 1.  We have to choose which of these unit \r\n" );
document.write( "fractions we need to multiply by.  Our choices are the unit\r\n" );
document.write( "fractions \"%28%281gal%29%2F%284qt%29%29\" and \"%28%284qt%29%2F%281gal%29%29\".  We will choose the one with \"qt\" \r\n" );
document.write( "on the bottom to multiply by, so that it will cancel \r\n" );
document.write( "with the \"qt\" in the numerator. So we multiply by \"%28%281gal%29%2F%284qt%29%29\"\r\n" );
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document.write( "\"%28%288qt%29%2F1%29%28%281gal%29%2F%284qt%29%29\"\r\n" );
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document.write( "Now we cancel the \"qt\"'s:\r\n" );
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document.write( "\"%28%288cross%28qt%29%29%2F1%29%28%281gal%29%2F%284cross%28qt%29%29%29\"\r\n" );
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document.write( "We can also cancel the \"4\" into the \"8\" and get \"2\"\r\n" );
document.write( " \"2\"\r\n" );
document.write( "\"%28%28cross%288%29cross%28qt%29%29%2F1%29%28%281gal%29%2F%28cross%284%29cross%28qt%29%29%29\"\r\n" );
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document.write( "That leaves\r\n" );
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document.write( "\"%282%2A1gal%29%2F1\"\r\n" );
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document.write( "or\r\n" );
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document.write( "\"2gal\"\r\n" );
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document.write( "Edwin
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