document.write( "Question 293667: Raphael can load a large shipping truck in 15 hours. Working together, Raphael and Jana can load the same truck in 6 hours. How long would it take Jana to load the truck by herself? \n" ); document.write( "
Algebra.Com's Answer #211949 by stanbon(75887)\"\" \"About 
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Raphael can load a large shipping truck in 15 hours. Working together, Raphael and Jana can load the same truck in 6 hours. How long would it take Jana to load the truck by herself?
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\n" ); document.write( "Rachael rate = 1/15 job/hr.
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\n" ); document.write( "Together rate = 1/6 job/hr
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\n" ); document.write( "Jana rate = 1/x job/hr
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\n" ); document.write( "Equation:
\n" ); document.write( "rate + rate = together rate
\n" ); document.write( "1/15 + 1/x = 1/6
\n" ); document.write( "Multiply thru by 30x to get:
\n" ); document.write( "2x + 30 = 5x
\n" ); document.write( "3x = 30
\n" ); document.write( "x = 10 hr (time Jana needs to do the job alone)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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