document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=919595>Question 919595</A>: <I><SPAN STYLE=\"word-break: break-all;\"> alice can wash he car in 3 and 1/2 hours if bernice helped her she can do the job in 2 hours. how long would it take if bernice working alone </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #557977 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=557977\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Alice can wash her car in 3 and 1/2 hours<BR>\n" );
document.write( " if Bernice helped her she can do the job in 2 hours.<BR>\n" );
document.write( " how long would it take if Bernice working alone?<BR>\n" );
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document.write( "let b = time required by Bernice working alone<BR>\n" );
document.write( "let the completed job = 1<BR>\n" );
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document.write( "Each will do a fraction of the job, the two fractions add up to 1<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F3.5 ALIGN=MIDDLE  ALT=\"2%2F3.5\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Fb ALIGN=MIDDLE  ALT=\"2%2Fb\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "multiply eq by 3.5b, cancel the denominators and you have<BR>\n" );
document.write( "2b + 3.5(2) = 3.5b<BR>\n" );
document.write( "2b + 7 = 3.5b<BR>\n" );
document.write( "7 = 3.5b - 2b<BR>\n" );
document.write( "7 = 1.5b<BR>\n" );
document.write( "b = 7/1.5<BR>\n" );
document.write( "b = 4<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F3 ALIGN=MIDDLE  ALT=\"2%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs Bernice working alone<BR>\n" );
document.write( ":<BR>\n" );
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document.write( " you can check this for yourself, see if the equation is true<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F3.5 ALIGN=MIDDLE  ALT=\"2%2F3.5\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F4.6667 ALIGN=MIDDLE  ALT=\"2%2F4.6667\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
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