document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=83079>Question 83079</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0618203230/algebrahomeworkh>introductory algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> A twin-engine plane can fly 800 mi in the same time that it takes a single-engine plane to fly 600 mi. The rate of the twin-engine plane is 50 mph faster than that of the single-engine plane. Fine the rate of the twin-engine plane. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #59630 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=59630\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  twin-engine plane can fly 800 mi in the same time that it takes a single-engine plane to fly 600 mi. The rate of the twin-engine plane is 50 mph faster than that of the single-engine plane. Fine the rate of the twin-engine plane.<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "Twin plane DATA: <BR>\n" );
document.write( "Distance = 800 mi ; Rate = x+50 mph ; time = d/r = 800/(x+50) hrs.<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "Single Plane DATA:<BR>\n" );
document.write( "Distance = 600 mi ; Rate = x mph ; time = d/r = 600/x<BR>\n" );
document.write( "===============<BR>\n" );
document.write( "EQUATION:<BR>\n" );
document.write( "time = time<BR>\n" );
document.write( "800/(x+50) = 600/x<BR>\n" );
document.write( "8/(x+50) = 6/x<BR>\n" );
document.write( "8x = 6x + 300<BR>\n" );
document.write( "x= 150 mph<BR>\n" );
document.write( "x+50 = 200 mph (twin-engine plane rate)<BR>\n" );
document.write( "===========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );