document.write( "Question 489756: If 3 people can do a job in 20 hours how long would it take 4 people to do the same job.\r
\n" ); document.write( "\n" ); document.write( "I tried a ratio: 3 is to 4 as 20 is to x (3/4 =20/x) = 60/4x divide each side by 4 and x is 15. Am I on the right track?
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Algebra.Com's Answer #333746 by chessace(471)\"\" \"About 
You can put this solution on YOUR website!
Not really. Almost every step you took is wrong, and then you wrote down the right answer for no apparant reason.
\n" ); document.write( "Job takes 3 * 20 man-hours = 60
\n" ); document.write( "Divide by 4 people to get 15 (you sort of figured that part out, but didn't express the steps right.
\n" ); document.write( "4 x = 3 * 20 with units labeled would be a better start.
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