00:02
Okay, in this problem we have been given a speed of 65 kilometers per hour, and we are asked to find the distance in kilometers that a kangaroo could travel in 3 .2 minutes.
00:25
And we've been asked to find how much time it would take in minutes for a kangaroo to travel 0 .25 minutes.
00:37
Kilometers.
00:40
In order to solve these problems, the first thing we're going to need to do is to convert the speed that we've been given from kilometers per hour into units of kilometers per minute.
00:55
This is a unit conversion problem.
00:59
So we have 65 kilometers per hour and we know that one hour is equivalent to 60 minutes.
01:16
Notice now, that we have units of hours in both the numerator and the denominator of our product.
01:22
This allows us to cancel out this unit.
01:26
So we're going to cancel out our unit of hours.
01:29
And we are left with 65 times 1 divided by 60, which is 1 .03 kilometers per minute.
01:48
We're going to use that speed to solve parts a and b...