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Perry traveled at an average speed of 55 miles per hour for 3.5 hours and then traveled at an average speed of 60 miles per hour for 2.5 hours. What was the total distance in miles that Perry traveled during this time? ► Play 347.5 mi O 330 mi 0 360 mi 0 342.5 mi

Perry traveled at an average speed of 55 miles per hour for 3.5 hours and then traveled-example-1
User HotFudgeSunday
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1 Answer

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7 votes

Constant Speed Motion

Given the speed of an object (v), and the time (t) it takes to travel a distance d, the relationship between these variables is:

d = v.t

Perry traveled at an average speed of v1=55 miles/hour for t1=3.5 hours. The distance traveled is:

d1 = 55 miles/hour * 3.5 hours = 192.5 miles

After that, Perry traveled at v2=60 miles/hour for t2=2.5 hours. The distance traveled is:

d2 = 60 miles/hour * 2.5 hours = 150 miles

The total distance Perry traveled was:

d = d1 + d2 = 192.5 miles + 150 miles = 342.5 miles

Perry traveled 342.5 mi (last choice)