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

Answer:

$45\frac{messages}{hour}$

Step-by-step 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

$\frac{9}{12}=0.75\frac{messages}{minute}$

Convert to messages per hour

Remember that $1\ hour=60\ minutes$

Multiply by $60$

$0.75*60=45\frac{messages}{hour}$