document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1135050>Question 1135050</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Betty ann drove from city A TO B a distance of 250 miles she increased her speed by 10 mi/hr for the 360 mile trip from B TO C.\r<BR>\n" );
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document.write( "if the total trip took 11 hours what was her speed  from city A to city B. </SPAN>\n" );
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document.write( "Let x be her speed from A to B; then x+10 is her speed from B to C.<br><BR>\n" );
document.write( "The time from A to B is distance divided by rate, 250/x; the time from B to C is 360/(x+10).<br><BR>\n" );
document.write( "Write and solve an equation that says the total time for the trip is 11 hours:<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=250%2Fx+%2B+360%2F%28x%2B10%29+=+11 ALIGN=MIDDLE  ALT=\"250%2Fx+%2B+360%2F%28x%2B10%29+=+11\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "Finishing solving the problem using the formal algebra is good practice; I leave that to you.<br><BR>\n" );
document.write( "However, if you just need to get to the solution as quickly as possible, trial and error is best.  Since the total time for the trip is a whole number of hours, look for speeds of x and x+10 that make both 250/x and 360/(x+10) whole numbers.... </SPAN>\n" );
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