Suppose the temperature outside is dropping 3 degrees each hour. How much will the temperature change in 8 hours?

24 degrees

Step-by-step explanation:

doesn't matter how you set up the fractions, just make sure the degrees are both on top or both on bottom

3°/1 hr = ?°/8 hours

cross multiply

3 x 8 = ? x 1

24 = ?

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.