document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=422436>Question 422436</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a plane can fly 700 miles in the same time a car to drive 250 miles. how fast are the car and plane moving if the plane flies 90 miles per hour faster than the car </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #295023 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=295023\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a plane can fly 700 miles in the same time a car to drive 250 miles. how fast are the car and plane moving if the plane flies 90 miles per hour faster than the car\r<BR>\n" );
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document.write( "let x = speed of car<BR>\n" );
document.write( "then, x+90 = speed of plane<BR>\n" );
document.write( "travel time = distance/speed<BR>\n" );
document.write( "travel time of car = 250/x<BR>\n" );
document.write( "travel time of plane = 700/x+90<BR>\n" );
document.write( "travel time of car=travel time of plane<BR>\n" );
document.write( "250/x=700/90+x<BR>\n" );
document.write( "700x=250x+22500<BR>\n" );
document.write( "450x=22500<BR>\n" );
document.write( "x=50 mph (speed of car)<BR>\n" );
document.write( "x+90=140 mph (speed of plane) </SPAN>\n" );
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