document.write( "Question 351583: An experienced bricklayer can construct a small wall in 2 hours. An apprentice can complete the job in 6 hours. Find how long it takes if they work together. \n" ); document.write( "
Algebra.Com's Answer #251209 by nerdybill(7384)\"\" \"About 
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An experienced bricklayer can construct a small wall in 2 hours. An apprentice can complete the job in 6 hours. Find how long it takes if they work together.
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\n" ); document.write( "Let x = time (hours) it takes if they work together
\n" ); document.write( "then
\n" ); document.write( "x(1/2 + 1/6) = 1
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\n" ); document.write( "Solving for x:
\n" ); document.write( "x(1/2 + 1/6) = 1
\n" ); document.write( "Multiply both sides by 12:
\n" ); document.write( "x(6 + 2) = 12
\n" ); document.write( "8x = 12
\n" ); document.write( "x = 12/8
\n" ); document.write( "x = 3/2
\n" ); document.write( "x = 1.5 hours
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