Acar travels 272 miles in 4 hours and 15 minutes. how many miles does it travel per hour?

Step-by-step explanation:

The problem is asking for the ratio between distance and time, and that it's the definition of speed, so we use:

Now, we need to find the ratio in miles and hours, that means we have to transform 15 minutes into hours to know the total time in hours.

We know that 1 hours is 60 minutes, applying this ratio, we have:

So, the total time the car travels is 4.25 hours.

Now, we calculate the ratio:

Therefore, the car travels 64 miles per hour.

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft

b

step-by-step explanation: