It is 3.67 miles to your grandparents’ home. If you can walk 4 miles in one hour, how long will it take for you to walk to your grandparents’ home? Express your answer in decimal hours and then convert the time to minutes (to the nearest minute).
+226 The formula you require for this is time = distance/speed.
The formula for distance , speed and time calculations is D(S×T) where D=Distance, S=Speed and T=Time. Whichever answer you require, cover it and the remaining is the formula for that answer. So if i wanted to know the distance, I would cover the "D", leaving the formula "S" multiplied by "T". If I wanted to know the time as in your question, I would cover the "T", leaving "D" divided by "S".
I find it helps me to remember this by the fact that the letters appear in the order they appear in the word "DiSTance", the three letters don't all appear in either "Speed" or "Time".
It is important to ensure that you are using the same units of measure for the distance and speed e.g. Miles for distance and MPH (miles per hour) for speed, or Kilometres for distance and km/h (Kilometres per hour) for speed. It doesn't matter what unit of measure you use, as long as you use it across the whole calculation. If you use any non metric unit of measure you must convert any fraction of a whole unit into a decimal, though this has already been done on your question.
As the question hints towards, you also need to ensure that the time applied to the calculation is expressed in decimal hours e.g. 15 minutes = 0.25 hours, 1 hour 45 minutes = 1.75 hours .etc. As your question gives the speed to a whole hour with no fraction, you don't need this for this question. You may then need to convert this back to the conventional hours and minutes if required.
There is no need for me to go into the calculations of the particular details of you question as geno3141 has already given you this and is a more reliable source than myself, I'm just a newbie. I have just laid this out as simple as possible in case it is required this way and to help with further Distance, Speed, Time calculations.
+23254 To find the amount of time, take the distance and divide by the rate. The answer will be in hours.
Notice that the distance to your drandparents' home is less than 4 miles, so it will take less than one hour.
3.67 miles / 4 miles/hour = 0.9175 hours
To change this into minutes, multiply by 60, the number of minutes in one hour:
0.9175 hours x 60 minutes/hour = 55.05 minutes, which rounds to 55 minutes.
If you are interest in numbers, you might like to read the following:
2/3 = .6666666... which rounds to .67
So 3.67 miles might actually mean 3 2/3 miles.
If it does: (3 + 2/3) / 4 x 60 = exactly 55 minutes
+226 The formula you require for this is time = distance/speed.
The formula for distance , speed and time calculations is D(S×T) where D=Distance, S=Speed and T=Time. Whichever answer you require, cover it and the remaining is the formula for that answer. So if i wanted to know the distance, I would cover the "D", leaving the formula "S" multiplied by "T". If I wanted to know the time as in your question, I would cover the "T", leaving "D" divided by "S".
I find it helps me to remember this by the fact that the letters appear in the order they appear in the word "DiSTance", the three letters don't all appear in either "Speed" or "Time".
It is important to ensure that you are using the same units of measure for the distance and speed e.g. Miles for distance and MPH (miles per hour) for speed, or Kilometres for distance and km/h (Kilometres per hour) for speed. It doesn't matter what unit of measure you use, as long as you use it across the whole calculation. If you use any non metric unit of measure you must convert any fraction of a whole unit into a decimal, though this has already been done on your question.
As the question hints towards, you also need to ensure that the time applied to the calculation is expressed in decimal hours e.g. 15 minutes = 0.25 hours, 1 hour 45 minutes = 1.75 hours .etc. As your question gives the speed to a whole hour with no fraction, you don't need this for this question. You may then need to convert this back to the conventional hours and minutes if required.
There is no need for me to go into the calculations of the particular details of you question as geno3141 has already given you this and is a more reliable source than myself, I'm just a newbie. I have just laid this out as simple as possible in case it is required this way and to help with further Distance, Speed, Time calculations.
