document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=884369>Question 884369</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Pa got in his '27 ford and started driving west from Memphis at a constant speen of 40 mph. An hour later ma got in her '34 Buick and started driving west from Memphis at a constant speed. After driving 4 hours ma had passed pea and was 20 miles ahead of him. How fast was ma driving? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #534238 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=534238\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Pa got in his '27 ford and started driving west from Memphis at a constant speen of 40 mph. An hour later ma got in her '34 Buick and started driving west from Memphis at a constant speed. After driving 4 hours ma had passed Pa and was 20 miles ahead of him. How fast was ma driving?<BR>\n" );
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document.write( "let x=ma's driving speed<BR>\n" );
document.write( "distance=travel time*speed<BR>\n" );
document.write( "4x=distance Ma traveled<BR>\n" );
document.write( "5*40=distance Pa traveled<BR>\n" );
document.write( "..<BR>\n" );
document.write( "4x-5*40=20<BR>\n" );
document.write( "4x=220<BR>\n" );
document.write( "x=55<BR>\n" );
document.write( "How fast was ma driving? 55 mph </SPAN>\n" );
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