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Either calculate the distance travelled (in miles) and divide by the total time (in hours) taken to undertake the journey or calculate in other units and carry out a conversion.

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Q: How do you work out average speed in miles per hour?
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How long does it take to travel 90 miles by car?

That depends on how fast the car is going. So if the car is going at 90 miles per hour, then guess what, it's going to take an hour to travel 90 miles. If the car is going half as fast then it takes twice as long. So at half the speed of 90 miles per hour (45 miles per hour) it's going to take two hours. But what if the car isn't going at a constant speed, as most cars don't. Then you need to work out (or take a guess at) the average speed. The average speed for mostly freeway driving and a little bit of surface streets is most likely about 50 or 55 miles per hour, and for city driving could be about 15-25 miles per hour. Since you are driving 90 miles, I am going to assume that you are not going to be doing city driving the whole way, and you are going to do a bit of freeway driving, so I will guess your average speed is going to be about 50 miles per hour. At 50 miles per hour the journey takes 90 miles divided by 50 miles per hour, that is 1 4/5 hours. Four fifths (4/5) of an hour is 48 minutes, which gives a travel time of 1 hour 48 minutes at 50 miles per hour. So that's because the question is in the math and algebra section. If you actually are travelling by car 90 miles, and you know where the start and end point are, the best way of getting a good estimate of your travel time is using Google Maps. Choose 'Get Directions', fill in the start and the end address and choose 'by car'. Look at the directions that are returned, and lo and behold, an estimate of the travel time. Good luck travelling 90 miles in your car!!


How many minutes is in 9 miles?

None. Minutes is a unit of time. Miles is a unit of measurement. The only way you get miles per hour is by knowing the speed of travel. This question needs work to get an answer.


The nile river is 4160 miles long but if you travel at a speed of 20 miles per hour how long would it take you?

Time = Distance / Speed So it would take you 4160 / 20 hours. You can work that out for yourself.


How do you work out the average speed?

That depends on that data you have.If you have a start and finish time, and the overall distance then you divide the distance in miles (or other units) by the number of hours and you'll get miles per hour.If I leave home at 07:15 and get to work at 9:00, having travelled 6.5 miles then I have an average speed of 6.5 / 1.75 = 3.71 mph. (but that's enough about the Dublin bus service!)If you have two or more different speeds, and the length of time each was travelled then you wan work out the overall distance and the overall time, and proceed as above.


Work out the speed 49 km in 3.5 hours?

Speed = distance traveled / time taken speed = 49 / 3.5 = 14 kmph (kilometers per hour)

Related questions

It takes you half an hour to travel 26 miles to work what is your average speed?

Speed= Distance/Time Distance= 26 miles Time= 1/2 hour Speed=26/1/2=52 Speed= 52 miles/hour


When Julie travels 5 hours to and from work everyday Her average rate of speed to work is 18 miles per hour and her average rate of speed returning is 12 miles per hour How far is it from her home to?

Her time to work is 2 hours and return is 3 hours. The distance is 36 miles.


What is the speed in miles per hour if you are driving 15 miles in 20 minutes?

It would work out as 45 miles per hour


If a cyclist takes 10 minutes to travel 2.4 miles What is the average speed in mph and how do you work it out?

An hour is 60 minutes, so the cyclist would travel 2.4 x 6=14.4 mph (miles per hour)


How long does it take to drive 312 miles?

that depends on the average speed. If you would (hypothetically) be able to drive 312 mph you would drive 312 miles in one hour. You should be able to work it out for any speed now


What is the wind mph got to be for a wind turbine to work?

the wind speed should be between 5 miles per hour and 50 miles per hour.


How long does it take to travel 300 miles by car?

It depends on your average speed. If the roads permit an average speed of 60mph, it would take you 5 hours. To work it out (using T=D/S): Time (hours) = 300 miles divided by average speed (mph)


If buzz travels 150 kilometeres in 1 hour 30 mins what is buzz's speed?

1 hour 30 minutes = 1 and a half hours. Therefore to work out the average speed in miles per hour after 1 hour 30 minutes, we divide the distance by 1.5. 150 / 1.5 = 100 kilometres per hour.


The speed at which work is done?

The speed at which work is done is called the work rate. It is measured as the amount of work completed in a given amount of time, typically expressed as units of work per unit of time (e.g. miles per hour, tasks per hour). A higher work rate indicates that work is being done more quickly.


How much time does 164.85 miles work out to be?

That's going to depend on how fast you cover the distance. The higher your speed is, the less time it'll take you. Here are a few options: -- Walking, 3 miles per hour. . . 54hours 57minutes -- Biking, 15 miles per hour . . . 10hours 59minutes 24seconds -- Driving, 30 miles per hour . . . 5hours 29minutes 42seconds -- Driving, 65 miles per hour . . . 2hours 32minutes 10seconds -- Speed of sound. . . . . . . . . . . . . . . . . 12minutes 47seconds -- Speed of light . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.000885second


Is change oil light in a 2009 Grand Caravan work on miles or oil viscosity?

A factor of miles, engine hours, average speed, temperatures. It does not directly measure the oil though.A factor of miles, engine hours, average speed, temperatures. It does not directly measure the oil though.


Latanya 15 mile commute to work each day takes an average of 40 minutes?

That means Latanya's average speed during her commute is 22.5 miles per hour.