speed | MathCelebrity Forum

# speed

1. ### Adam drove the 10 miles to school at a speed of 60 mph. On his way home, due to traffic, his speed w

Adam drove the 10 miles to school at a speed of 60 mph. On his way home, due to traffic, his speed was 30 mph. What was his average speed for the round trip to school and back? D = rt To school: 60 miles in 60 minutes = 10 miles in 10 minutes To home: 30 miles in 60 minutes = 10 miles in 20...
2. ### A car is traveling on a freeway at 50 mph with the cruise control set at 50 mph. Another car is trav

A car is traveling on a freeway at 50 mph with the cruise control set at 50 mph. Another car is traveling at 90 mph with the cruise control set at 90 mph. Which car has a higher acceleration? Acceleration means a change in speed. Neither car has a change in speed, so both cars have the same...
3. ### In the year 1999, Hicham El Guerrouj of Morocco set a new world record when he ran a mile in 3 minut

In the year 1999, Hicham El Guerrouj of Morocco set a new world record when he ran a mile in 3 minutes 43.13 seconds. What was his speed in miles per hour? (Round your answer to the nearest hundredth.) 3 minutes = 60 seconds per minute = 180 seconds 180 seconds + 43.13 seconds = 223.13 seconds...
4. ### If you are running 6 miles per hour, then it takes you 10 minutes to run 1 mile. If you are running

If you are running 6 miles per hour, then it takes you 10 minutes to run 1 mile. If you are running 8 miles per hour, it takes you 7.5 minutes to run a mile. What does your speed have to be for your speed in miles per hour to be equal to your mile time in minutes? From above, we have: 6mph...
5. ### A man left a warehouse at 9:00 a.m. and travels 150 km to reach his home. What is the speed if he a

A man left a warehouse at 9:00 a.m. and travels 150 km to reach his home. What is the speed if he arrives at 11:00 a.m.? His trip took 2 hours (11 - 9) He traveled 150 km in 2 hours His speed is measured in km per hour If we have 150km/2 hours, we want his speed in km per hour Divide top and...
6. ### Michael is riding his bicycle. He rides 25.6 kilometers in 4 hours. What is his speed?

We need the speed of KM per hour. 25.6 km / 4 hours Divide top and bottom by 4 to get km per hour 6.4km per hour
7. ### A private jet flies the same distance in 4 hours that a commercial jet flies in 2 hours. If the spee

A private jet flies the same distance in 4 hours that a commercial jet flies in 2 hours. If the speed of the commercial jet was 154 mph less than 3 times the speed of the private jet, find the speed of each jet. Let p = private jet speed and c = commercial jet speed. We have two equations: (1)...
8. ### Speed Rules

https://soundcloud.com/mathcelebrity/organic-seo-part-3-speed-rules