Question

Show how to use unit multipliers to convert 4 hours to seconds.

Answer 1

4 hours = 14400 seconds.

Explanation:

i) In 1 hour there are 60 minutes

ii) in 1 minute there are 60 seconds

iii) therefore 1 hour = 60 minutes

= 60
`*` 60 seconds

= 3600 seconds

iv) therefore to convert 4 hours to seconds we have to multiply the number of hours by 3600 seconds

therefore 4 hours = 4
`*` 3600 seconds = 14400 seconds.