document.write( "Question 77717This question is from textbook Introductory to algebra
\n" ); document.write( ": Edwin can tune up his chevy in 2 hrs working alone. His sone, Beau, can do the job in 3hr working alone. How long would it take them if they worked together? (let t represent the time working together) \n" ); document.write( "

Algebra.Com's Answer #55749 by scott8148(6628) $\"\"$ $\"About$

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if Edwin can do the job in 2 hrs, then in t hrs he does t/2 of the job similarly, Beau does t/3 of the job\r
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\n" ); document.write( "\n" ); document.write( "together they do the whole job, so the equation is $\"%28t%2F2%29%2B%28t%2F3%29=1\"$ ...multiplying by 6 gives 3t+2t=6\r
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\n" ); document.write( "\n" ); document.write( "so 5t=6 and t=6/5 \n" ); document.write( "

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