document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1174482>Question 1174482</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A contractor finds that Crew A takes  <BR>\n" );
document.write( "5(1/2) hours to construct a retaining wall and Crew B can do the same job in  <BR>\n" );
document.write( "7(1/2) hours. If Crew A and Crew B work together, how long will it take them to construct the retaining wall?\r<BR>\n" );
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document.write( "a) Let h= the time to complete the job. Write the equation you would use to solve this problem.\r<BR>\n" );
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document.write( "b) Now solve your equation. Give your answer first as a reduced fraction, and then a decimal rounded to 3 places.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #800023 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=800023\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A contractor finds that Crew A takes 5(1/2) hours to construct a retaining wall and Crew B can do the same job in 7(1/2) hours.<BR>\n" );
document.write( " If Crew A and Crew B work together, how long will it take them to construct the retaining wall?<BR>\n" );
document.write( "a) Let h = the time to complete the job. Write the equation you would use to solve this problem.<BR>\n" );
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document.write( "let the completed job = 1, each will do a fraction of the job which adds up to 1<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h%2F5.5 ALIGN=MIDDLE  ALT=\"h%2F5.5\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h%2F7.5 ALIGN=MIDDLE  ALT=\"h%2F7.5\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
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document.write( "b) Now solve your equation. Give your answer first as a reduced fraction, and then a decimal rounded to 3 places.<BR>\n" );
document.write( "Multiply eq by 5.5*7.5 = 41.25, cancel the denominators<BR>\n" );
document.write( "7.5h + 5.5h = 41.25<BR>\n" );
document.write( "13h = 41.25<BR>\n" );
document.write( "h = 41.25/13<BR>\n" );
document.write( "h = 3.173 hrs working together </SPAN>\n" );
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