document.write( "Question 871960: Joseph paints n cars in t hours. How long does it take joseph to paint one car? \n" ); document.write( "
Algebra.Com's Answer #525834 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "n cars is to t hours as 1 car is to ??? hours.\r\n" );
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document.write( "Let X be the answer.\r\n" );
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document.write( "n cars is to t hours as 1 car is to ??? hours.\r\n" );
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document.write( "n is to t as 1 is to X\r\n" );
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document.write( "n:t = 1:X\r\n" );
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document.write( "n over t equals one over X\r\n" );
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document.write( "\"n%2Ft\"\"%22%22=%22%22\"\"1%2FX\"\r\n" );
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document.write( "Cross-multiply:\r\n" );
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document.write( "\"nX\"\"%22%22=%22%22\"\"1t\"\r\n" );
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document.write( "\"nX\"\"%22%22=%22%22\"\"t\"\r\n" );
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document.write( "\"nX%2Fn\"\"%22%22=%22%22\"\"t%2Fn\"\r\n" );
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document.write( "\"X\"\"%22%22=%22%22\"\"t%2Fn\"\r\n" );
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document.write( "Joseph can paint 1 car in \"t%2Fn\" hours.\r\n" );
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document.write( "Here's an easy way to think it through to get the hang of it:\r\n" );
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document.write( "If he can paint 2 cars in t hours, it will only take him 1/2 as long to paint just 1 car, or t/2 hours.\r\n" );
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document.write( "If he can paint 3 cars in t hours, it will only take him 1/3 as long to paint just 1 car, or t/3 hours.\r\n" );
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document.write( "If he can paint 4 cars in t hours, it will only take him 1/4 as long to paint just 1 car, or t/4 hours.\r\n" );
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document.write( "If he can paint 5 cars in t hours, it will only take him 1/5 as long to paint just 1 car, or t/5 hours.\r\n" );
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document.write( "etc.\r\n" );
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document.write( "So it's easy to go from there to:\r\n" );
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document.write( "If he can paint n cars in t hours, it will only take him 1/n as long to paint just 1 car, or t/n hours.\r\n" );
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document.write( "Edwin
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