document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=138082>Question 138082</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0130442631/algebrahomeworkh>Prentice Hall Algebra 1</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> An airplane flies 738 mi against the wind and 1062 mi with the wind in a total time of 9 hours. The speed of the airplane in still air is 200 mi/h. What is the speed of the wind? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #100875 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=100875\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 738/(200-W)+1062/(200+W)=9<BR>\n" );
document.write( "[738(200+W)+1062(200-W)/(200-W)(200+W)=9<BR>\n" );
document.write( "(147,600+738W+212,400-1062W)/(40,000-W^2)=9 NOW CROSS MULTIPLY<BR>\n" );
document.write( "9(40,000-W^2)=738W-1062W+147,600+212,400<BR>\n" );
document.write( "360,000-9W^2=-324W+360,000<BR>\n" );
document.write( "-9W^2+324W+360.000-360,000=0<BR>\n" );
document.write( "9W^2-324W=0<BR>\n" );
document.write( "9W(W-36)=0<BR>\n" );
document.write( "W-26=0<BR>\n" );
document.write( "W=36 ANSWER FOR THE SPEED OF THE WIND.<BR>\n" );
document.write( "PROOF<BR>\n" );
document.write( "738/(200-36)+1062/(200+36)=9<BR>\n" );
document.write( "738/164+1062/236=9<BR>\n" );
document.write( "4.5+4.5=9<BR>\n" );
document.write( "9=9\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );