Question

You receive 9 text messages in 12 minutes. What is the rate of text messages per hour?

Answer 1

9 text messages in 12 min ⇒ how many text messages in 60 min
9×60÷12 = 45 text messages :))

Answer 2

`45(messages)/(hour)`

Explanation:

we know that

To find the rate of text messages per hour, first divide the total messages by the total time in minutes

so

`(9)/(12)=0.75(messages)/(minute)`

Convert to messages per hour

Remember that
`1\ hour=60\ minutes`

Multiply by
`60`

`0.75*60=45(messages)/(hour)`