document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=153259>Question 153259</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could you please help me with some word problems my teacher has assigned? We were told these were not directly from a math book.  \r<BR>\n" );
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document.write( "A salesman made a trip of 375 miles by bus and train. He traveled 3 hours by bus and 4 hours by train. If the train is 15 mph faster than the bus, how fast did he travel on each?\r<BR>\n" );
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document.write( "I was thinking it was: 375=4x+15  and 375=3x  I just get so confused on these problems. Could you help me please?<BR>\n" );
document.write( "THank you in advance.\r<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 #112801 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=112801\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A salesman made a trip of 375 miles by bus and train. He traveled 3 hours by bus and 4 hours by train. If the train is 15 mph faster than the bus, how fast did he travel on each? <BR>\n" );
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document.write( "Let s = speed of the bus<BR>\n" );
document.write( "then<BR>\n" );
document.write( "(s+15) = speed of the train<BR>\n" );
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document.write( "Write a distance equation: Dist = time * speed<BR>\n" );
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document.write( "Bus dist + train dist = 375 mile<BR>\n" );
document.write( "3s + 4(s+15) = 375<BR>\n" );
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document.write( "3s + 4s + 60 = 375<BR>\n" );
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document.write( "7s = 375 - 60<BR>\n" );
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document.write( "7s = 315<BR>\n" );
document.write( "s = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=315%2F7 ALIGN=MIDDLE  ALT=\"315%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "s = 45 mph is the bus, then obviously, the train is 60 mph<BR>\n" );
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document.write( "Checks solution by finding the dist of each<BR>\n" );
document.write( "3(45) + 4(60) =<BR>\n" );
document.write( "135 + 240 = 375<BR>\n" );
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document.write( "That wasn't so confusing, was it? </SPAN>\n" );
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