document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=265578>Question 265578</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An airplane flew for 8 hours at an airspeed of x miles per hour (mph),and for 7 more hours at 325 mph.If the average for the entire flight was 350 mph, which  equations could be used to find x? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #195306 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=195306\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> D=RT<BR>\n" );
document.write( "D=8X<BR>\n" );
document.write( "D=7*325<BR>\n" );
document.write( "(8X+7*325)/15=350<BR>\n" );
document.write( "(8X+2,275)/15=350 CROSS MULTIPLY<BR>\n" );
document.write( "8X+2,275=15*350<BR>\n" );
document.write( "8X+2,275=5,250<BR>\n" );
document.write( "8X=5,250-2,275<BR>\n" );
document.write( "8X=2,975<BR>\n" );
document.write( "X=2,975/8<BR>\n" );
document.write( "X=371.875 MPH. FOR THE 8 HOUR LEG.<BR>\n" );
document.write( "2,975+2,275=5,250 IS THE TOTAL DISTANCE<BR>\n" );
document.write( "5,250=R(8+7)<BR>\n" );
document.write( "5,250=15R<BR>\n" );
document.write( "R=5,250/15<BR>\n" );
document.write( "R=350 MPH. IS THE AVERAGE SPEED. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );