Posted by Felix Ferrer on Tuesday, October 2, 2007 at 5:51pm.
Can someone please help me? I can't figure out the answer. A motorist takes a trip of 100 miles, traveling at 40 mph for the first 50 miles and 60 mph for the last 50 miles. What is the average speed in mph for the trip?

Math  Ms. Sue, Tuesday, October 2, 2007 at 6:00pm
40 + 60 = 100
100/2 = ?
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