document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=539538>Question 539538</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A truck and a car leave an intersection at the same time traveling in the same direction. The<BR>\n" );
document.write( "truck’s speed is 30 mph, and the speed of the car is 35 mph. After how long will the car be 5 miles ahead of the truck? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #353456 by </B><A HREF=/tutors/aboutme.mpl?userid=oberobic><B>oberobic(2304)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oberobic><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=353456\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> d = r*t, where d=distance, r=rate, and t=time.<BR>\n" );
document.write( "so<BR>\n" );
document.write( "t = d/r<BR>\n" );
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document.write( "Truck:<BR>\n" );
document.write( "r = 30 mph<BR>\n" );
document.write( "d = x miles<BR>\n" );
document.write( "t = x/30<BR>\n" );
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document.write( "Car:<BR>\n" );
document.write( "r = 35 mph<BR>\n" );
document.write( "d = x+5 miles<BR>\n" );
document.write( "t = (x+5)/35<BR>\n" );
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document.write( "t = t<BR>\n" );
document.write( "so<BR>\n" );
document.write( "x/30 = (x+5)/35<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Cross multiply.<BR>\n" );
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document.write( "35x = 30(x+5)<BR>\n" );
document.write( "35x = 30x + 150<BR>\n" );
document.write( "5x = 150<BR>\n" );
document.write( "x = 30 miles<BR>\n" );
document.write( ".<BR>\n" );
document.write( "t = 30 miles/30 mph = 1 hr<BR>\n" );
document.write( "@ 30 mph it takes 1 hr to travel 30 miles<BR>\n" );
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document.write( "Checking<BR>\n" );
document.write( "t = 35 miles/35 mph = 1 hr<BR>\n" );
document.write( "@ 35 mph it takes 1 hr to travel 35 miles<BR>\n" );
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document.write( "So, the car will be 5 miles ahead in 1 hr.<BR>\n" );
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document.write( "Done. </SPAN>\n" );
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