6.12 Time Goes By Worksheet With Answer Key Page 9
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• • • • • • • Measuring Speed and Distance
Word
Problems
rate of speed = distance divided by time or r = d –
The formula for determining the rate of speed follows:
t
Example: If a car travels 120 miles in 3 hours, what is its average speed in miles per hour?
Example:
r = 120/3
Example:
r = 40 miles per hour
The formula for determining the distance traveled follows:
distance = rate of speed multiplied by the time or d = r x t
Example: If a car traveled 40 miles per hour for 3 hours, how far did it travel?
Example:
d = 40 x 3
Example:
d = 120 miles
Directions: Use the information above to solve these problems.
1. Your best friend rode his bike 45 miles in 5 hours. What was your friend’s average rate of speed?
___________ miles per hour
2. You rode your skateboard across town at 15 miles per hour for 3 hours. How far did you ride?
___________ miles
3. A fifth grade teacher drove 450 miles from Los Angeles to Sacramento in 9 hours. What was her
average rate of speed? ___________ m.p.h.
4. Your principal drove 2,800 miles from New York City to Seattle, Washington, in 64 hours. What
was his or her average rate of speed? ___________ m.p.h.
5. A group of Eagle Scouts traveled the 2,800 miles from New York City to Seattle by bicycle in
250 hours. What was their average rate of speed? ___________ m.p.h.
6. A troop of Girl Scouts bicycled at 14 miles per hour for 12 hours. How many miles did they
travel? ___________ miles
7. A man rode a horse at 18 miles per hour for 15 hours. How far did he travel? ___________
miles
8. An airplane flew 3,471 miles from New York City to London, England, in 6 hours. What was the
average rate of speed? ___________ m.p.h.
9. Charles Lindbergh flew 3,610 miles nonstop from New York to Paris in 33 1 –
hours. What was his
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average speed in miles per hour? ___________ m.p.h. (Round your answer to the nearest tenth.)
10. Amelia Earhart flew about 2,025 miles from Newfoundland, Canada, to Ireland in about 15 hours.
What was her average rate of speed? ___________ m.p.h.
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