document.write( "Question 212049: brandon can shovel his sidewalk in 8 minutes nad his brother can shovel the sidewalk in 12 minutes. if they work together, how long will it take them to shovel the sidewalk? \n" ); document.write( "
Algebra.Com's Answer #160136 by stanbon(75887)\"\" \"About 
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brandon can shovel his sidewalk in 8 minutes nad his brother can shovel the sidewalk in 12 minutes. if they work together, how long will it take them to shovel the sidewalk?
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\n" ); document.write( "Brandon rate = 1/8 job/min
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\n" ); document.write( "Brother rate = 1/12 job/min
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\n" ); document.write( "Together rate = 1/x job/min
\n" ); document.write( "Equation:
\n" ); document.write( "1/8 + 1/12 = 1/x
\n" ); document.write( "Multiply thru by 24x to get:
\n" ); document.write( "3x + 2x = 12
\n" ); document.write( "5x = 12
\n" ); document.write( "x = 2.4 minutes (time required when they work together)
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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