Question

The Evans family drives 21 miles in the first 20 minutes of their field trip. What is their speed in Miles per hour during this time? Create a representation to show your work.

Answer 1

The average speed of the Evans family during the first 20 minutes of their trip, when they drive 21 miles, is calculated to be 63 miles per hour.

Step-by-step explanation:

To find the average speed, we use the formula:

Speed = Distance / Time

We have the distance (21 miles), but the time needs to be in hours to calculate the speed in miles per hour.

We convert 20 minutes to hours by dividing by 60 (since there are 60 minutes in an hour).

So, 20 minutes is 20/60 hours, which is 1/3 or approximately 0.333 hours.

Now we use our formula:

Speed = 21 miles / 0.333 hours

= 63 miles/hour