00:01
Okay, we are going to look at boating and speed.
00:05
So we're going to be dealing with nautical miles and meters and inches.
00:10
So we've got a bit of conversion, we've converted from like three different ways here.
00:15
Okay, so we know that one nautical mile, one nautical mile in the problem.
00:27
And i'm going to put the symbol for nautical mile, which is nmi.
00:31
That's an acceptable symbol.
00:33
We know that we have to change that into meters.
00:38
We know that one nautical mile has to be changed into miles.
00:44
And if we have 22 knots, which is a speed of a boat, we want to change that into miles per hour.
00:58
Now, we're given that one nautical mile is 6076 .12 feet and one knot is one nautical mile per hour exactly.
01:09
The rest of it, because we're going for miles and meters and we're dealing with centimeters and knots and stuff like that, i looked up some of the conversion that we probably want to use, most definitely.
01:24
One mile is 160909 .09 .3 .34 meters and one meter is 100 centimeters and one foot is 12 inches and one inch is 2 .54 centimeters.
01:39
Okay.
01:40
So the easiest one of these is to do meters first and you'll see why when i do this.
01:47
So let's take one nautical mile and again i'm using mi because that's acceptable.
01:55
I remember anything number by itself is actually over one instance.
02:00
My ones can get a little won't get that confused with another number.
02:05
Don't make that just a one.
02:08
Okay.
02:08
All right.
02:09
To convert this, i'm going to go from nautical miles to feet.
02:14
So i'm going to use my first conversion factor right here.
02:19
So one nautical mile is equal to 6076.
02:28
And that's feet.
02:30
And this will allow me to get rid of my nautical miles because one is in the numerator, one is in the denominator.
02:36
And then i'm going to multiply that by another conversion ratio.
02:40
Since this is feet to go forward, i'm going to go from feet to inches.
02:45
So i'm going to take the one foot is equal to 12 inches conversion factor.
02:51
And that will now me get rid of my foot.
02:54
And that's 12 inches.
02:57
Okay, we're doing great, but we're still not at meters.
03:01
Okay, now i need to get from inches into the meters.
03:05
So if i look, i have a conversion factor right here, which will allow me to go from our regular standard measurement to the metric system.
03:14
And that tells me that one inch is the same as 2 .54 centimeters.
03:22
And that allows me to get rid of my inches.
03:25
Okay and now i'm in meters so anything can get to meters right so one meter is equal to how many centimeters if i look up here i find that one meter is equal to 100 centimeters so that's 100 centimeters this way i can get rid of oops i got to flip that my what the people say my bad because it happens that's why you have to always always check and that's why it's why it's so important that you put down your units because something like that if i wasn't paying attention i was just going to do my calculation i'm good to go but since i am writing down my units i was able to catch my mistake because i wasn't able to cancel out my centimeters okay all right so now i've got my meters and using calculator you're going to multiply everything at the top in parentheses and divided by everything at the bottom in parentheses okay for those of us who don't know how to do the shortcuts.
04:31
That's the best way for you to do.
04:33
And i'm going to wind up with 1 -8 -5 -2 meters.
04:40
So i've solved the question of my meters.
04:44
That's done...