document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=428016>Question 428016</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An experienced bricklayer can construct a small wall in 3 hours. An apprentice can complete the job in 7 hours. Find out how long it takes if they work together.\r<BR>\n" );
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document.write( "Appreciate the help. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #297568 by </B><A HREF=/tutors/aboutme.mpl?userid=John10><B>John10(297)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=John10><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=John10><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=297568\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An experienced bricklayer can construct a small wall in 3 hours. An apprentice can complete the job in 7 hours. Find out how long it takes if they work together.\r<BR>\n" );
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document.write( "Let x be the time that both work together\r<BR>\n" );
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document.write( "Then bricklayer's rate is x/3<BR>\n" );
document.write( "An apprentice's rate is x/7\r<BR>\n" );
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document.write( "To complete the job together :\r<BR>\n" );
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document.write( "x/3 + x/7 = 1\r<BR>\n" );
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document.write( "Multiply both sides by LCD (21)\r<BR>\n" );
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document.write( "7x + 3x = 21<BR>\n" );
document.write( "10x = 21<BR>\n" );
document.write( "x = 21/10\r<BR>\n" );
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document.write( "Contact me if you need extra help or math 117!John10 </SPAN>\n" );
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