document.write( "Question 757742: pam and craig, working together, can mow the lawn in 8 hours. working alone craig takes twice as long as pam. How long does it take pam. \n" ); document.write( "

Algebra.Com's Answer #461064 by josgarithmetic(39626) $\"\"$ $\"About$

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The rates of each person working together are additive.\r
\n" ); document.write( "\n" ); document.write( "p for pam's rate and c for craig's rate.
\n" ); document.write( "pam works two times the rate of craig.\r
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\n" ); document.write( "\n" ); document.write( "p=2c
\n" ); document.write( "The rates in jobs per hour are these:
\n" ); document.write( "craig: $\"1%2F%282h%29\"$
\n" ); document.write( "pam: $\"1%2F%28h%29\"$
\n" ); document.write( "h is the time for craig to do the job alone. The direct use of p=2c seems not needed although represents the description.\r
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\n" ); document.write( "\n" ); document.write( "Equation: $\"highlight%281%2F%282h%29%2B1%2Fh=1%2F8%29\"$ remember the unit is jobs per hour.\r
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\n" ); document.write( "\n" ); document.write( "Solve for h.
\n" ); document.write( " $\"2h%2A%281%2F%282h%29%29%2B2h%281%2Fh%29=2h%2F8\"$
\n" ); document.write( " $\"1%2B2=h%2F4\"$
\n" ); document.write( " $\"h=12\"$ \r
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\n" ); document.write( "\n" ); document.write( "Time each needs to do the job:
\n" ); document.write( "--------------------------------------
\n" ); document.write( "Pam, h/1 = 12 hours___________
\n" ); document.write( "Craig, 2h/1 = 24 hours_________
\n" ); document.write( "-------------------------------------- \n" ); document.write( "

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