Question

Jon walked 98 feet in 11.5 seconds. What is his speed in miles per hour? (1 mi = 5280 ft)

Answer 1

Answer:To convert this to miles per hour, we need to first convert the distance to miles. We know that 1 mi = 5280 ft, so 98 ft = 98 / 5280 mi = 0.0184 mi.

Now we can use the formula speed = distance / time again, but this time using miles and hours as the units. So, speed = 0.0184 mi / (11.5 s / 3600 s/hr) = 0.0184 mi / 0.003194 hr = 5.8 mi/hr.

Explanation:

Answer 2

5.81 mph

Explanation:

We want to first convert the number of feet to miles and then divide by the number of hours. Since we know that 5280 feet is one mile, we essentially want to find how many "groups" of 5280 are in some distance and that's the number of miles. We can do this by dividing.

`(98)/(5280)\approx0.018561`

Now we want to find how many hours 11.5 seconds is. It's basically the same process as we divide this by the number of seconds in an hour 3600.

11.5/3600 = 0.00319

Now divide the distance over the time and this gives us approximately: 5.81 mph