00:01
Solving problems.
00:02
91 of chapter two.
00:06
So a car travel at 55 my eyes that our and, um and get's 11 kilometers with one liter of gus.
00:28
So now the question is, oh, many garland gus are needed for this car with this particular characteristic to travel for three hours.
00:42
So personable.
00:43
First of all, let's convert miles in tow kilometers.
00:49
We know the one mile equal 1.61 kilometer.
01:01
So from here, um, we want to convert.
01:07
Let's scroll down actually.
01:10
So first that miss calling first 55 mai's times the conversion factor that is 1 61 kilometer one mile.
01:29
So in this way, we can eliminate minds with mysql.
01:33
It is what we want to do it and we end up with eight.
01:43
You know, meters now it's kind off arbitrarily the the number that you want to take for the commercial factor meaning are many significant.
01:57
How many decimus you want to take for this number? i took 1 40 61 but you can take more.
02:05
Um anyway, these numbers two significant figures, so you will use toe for the result.
02:13
So this was the first the first step.
02:16
So now we know that this car is traveling at 88 kilometer.
02:21
Karam were.
02:23
And we know that he gets 11 kilometer with one leader off us...