00:01
Okay, so i see that you need help with these two problems.
00:04
And the first one starts and says when running a half a marathon, it took, which is 13 .1 miles.
00:14
It took sam eight minutes to run from mile marker one to mile marker two.
00:22
So that took eight minutes.
00:26
Then from mile marker two to mile marker four, it took a total.
00:33
Of 20 minutes.
00:38
How long did it take sam to run from mile marker 1 to mile marker 4? so that's a total of 28 minutes.
00:50
What was sam's average speed as he ran from mile marker 1 to mile marker 4? so so far he took a total of 28 minutes.
01:01
So that answers the first question.
01:02
Then the second question wants to know his average speed from one to four so i'm going to take 28 and divide it by four and the average speed is seven um minutes per mile so this is his average speed so that's the second question and then it says um how many miles per minute so that's seven okay so now it wants to know how many miles per minutes so it's seven minutes per mile if it's seven minutes per mile per mile per one mile how many miles for one minutes and so um i would have to do one divided by seven so it would be one seventh mile in one minute.
02:26
Okay.
02:30
Six, so in 69 minutes after the race, sam passed mile marker nine.
02:39
To complete the race in 111 minutes, what must sam's average speed be as he travels from mile marker nine to the finish line? so, to go nine miles, um, it says 69 minutes after starting the race, he passed mile marker 9.
03:02
So 69 minutes, he did 9 miles.
03:11
So 69 divided by 9 is 7 in 2 thirds minutes for one mile.
03:32
Okay? okay.
03:33
So if he wanted to complete the race in 111 minutes, what must his average speed be as he goes from 9 to the finish line? okay.
03:49
So 111 minus 69 equals he's got 42 minutes left to go 13 .1 .1 .3 .1 .5 .5.
04:11
He's got 42 minutes left to go.
04:11
Minus 9 is 4 .1 miles.
04:21
So in order to achieve this, it says how many miles per minute, he must go 42 divided by 4 .1.
04:41
He must go at least, we'll say 10 .25 minutes per minutes per one per per one.
04:53
Mile, one mile, okay? and it's doing, hold on, and then it says how many miles per minute.
05:05
If i want to convert that to minutes, one minute, he needs to do 4 .1 divided by 42.
05:20
He's going to go 0...