Question

A tennis ball machine can launch 60 tennis balls in 12 minutes.

At this rate, how many tennis balls can it launch in an hour?

Answer 1

300 tennis balls

Step-by-step explanation:

There are 60 minutes in an hour so...

60/12 = 5

Since 60 tennis balls can be launched in 12 minutes and 12x5 is one hour, 60x5 tennis balls can be launched in an hour.

60(5) = 300

Answer 2

60/12 =5
5x60t = 300