Question

how many hours are in 90,000 seconds?
A)25h
B)750h
C)10,800,000h
D)324,000,000h

Answer 1

Any ideas?

Answer 2

Recall there are 60 seconds in a minute and 60 minutes in an hour.

Answer 3

Step 1 change 90, 000 seconds into minutes.

Answer 4

First before I explain , what do you think? I already have answer determined in my head , what are your thoughts?

Answer 5

The fact that there are 60 seconds in 1 minute can be stated as an equation as 60 sec = 1 min.

This equation can be used as a conversion factor as $$\dfrac{60sec}{1min}$$ or $$\dfrac{1min}{60sec}$$

both of which equal 1.

$$\huge 90,000sec \times \dfrac{1min}{60sec}=?$$