document.write( "Question 364896: Marie jogs at an average speed of 6 miles per hr for 1.5 hrs along a straight path and then turns around to jog back to her starting point.Marie had scheduled 2.5 hrs to jog the total distance.If Marie is to arrive back exactly on scheduled , at what average speed , in miles per hrs, must she3 jog back to her starting point? \n" ); document.write( "
Algebra.Com's Answer #260290 by ankor@dixie-net.com(22740)\"\" \"About 
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Marie jogs at an average speed of 6 miles per hr for 1.5 hrs along a straight
\n" ); document.write( " path and then turns around to jog back to her starting point.
\n" ); document.write( "Marie had scheduled 2.5 hrs to jog the total distance.
\n" ); document.write( "If Marie is to arrive back exactly on scheduled, at what average speed, in miles
\n" ); document.write( " per hrs, must she jog back to her starting point?
\n" ); document.write( ":
\n" ); document.write( "Find the distance to the point he turns around.
\n" ); document.write( "1.5 * 6 = 9 mi
\n" ); document.write( "This is also the distance to the starting point
\n" ); document.write( "2.5 - 1.5 = 1 hr is the time required to return to the starting point
\n" ); document.write( "It's obvious he has to jog at 9 mph, to go 9 mi in 1hr
\n" ); document.write( ":
\n" ); document.write( "Confirm this with a time equation
\n" ); document.write( "Write a time equation: time = dist/speed
\n" ); document.write( "\"9%2F6\" + \"9%2F9\" = 2.5
\n" ); document.write( "1.5 + 1 = 2.5
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