yego.me
yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Length of a trip in 24 hour time | Math | Khan Academy

2m read
·Nov 10, 2024

Hello! So we're told Colette rides her bike home from school every afternoon. She leaves school at 14:55 and arrives home at 15:25. How long does she ride her bike? So pause this video like always and see if you can answer that question: how long is her bike ride home?

All right, now to help us answer that question, I'm going to set up a timeline. So that's my timeline there, and let's say that everything is going on between 14 hours and it looks like between, actually, past 15 hours. So I'll go to 16 hours. So that is hours, and this is 15 hours, and then 16 hours would be maybe right over there 16 hours.

And this would be 14 and a half, just to make things a little bit clearer. This would be 15 and a half, just like that. Actually, it'd be a little bit— it would be something like that. And so let's see, she leaves school at 14:55. Where is that on this timeline? Well, 14:55 is 5 minutes before 15.

So it's going to be roughly right over here, so that is when Colette leaves. So that is 14:55, and then when she arrives, 15:25, that's 25 minutes after 15 hours, so that is right over there. So this right over there is when she arrives home, 15:25.

And so how long is that? Well, the way I think about it is if we go from 14:55 to 15:00, that is 5 minutes. So this part right over there is five, and then to go from 15:00 to 15:25, that's another 25 minutes.

So the total length of her trip in time is going to be 5 minutes plus 25 minutes. 5 plus 25 is 30. 30 minutes, and we are done.

Why Vertical LLM Agents Are The New $1 Billion SaaS Opportunities
How Do Honeybees Get Their Jobs? | National Geographic

More Articles

View All
EVERYTHING WRONG With My Tesla Model 3 After One Year
What’s up you guys? It’s Graham here. So, as some of you know, last year I bought a Tesla Model 3. In typical me fashion, I tried to be as frugal as possible to get the car’s price down as much as I could by skimping on all of the options. I decided to p…
Elon Musk Pleads "Vote Like Your Life Depends on It!" and Speaks on Why He Became Politically Active
The Jogan experience, and, uh, it’s meant to be you’re roasting the president. Like Trump’s just there, he’s like, actually, you know, just, he’s like there as part of the support. And then they turned it around and just started roasting Trump, and he’s j…
Why Nestle Is the Worst
What is the most evil company in the world? Exxon, who depletes oil wells and poisons our atmosphere? Or Philip Morris, who continues to manufacture cigarettes even after millions of people have died from smoking them? Maybe Monsanto, who exploit the agri…
Bill Belichick & Ray Dalio on Identifying and Addressing Mistakes: Part 2
So we do, uh, some of the things, we actually video everything that’s going on, and then you could look at the video and then reflect on it. One of the things I found is that, um, some people, when they look at their, uh, mistakes, react differently than …
Curvature formula, part 2
In the last video, I started to talk about the formula for curvature. Just to remind everyone of where we are, you imagine that you have some kind of curve in, let’s say, two-dimensional space, just for the sake of being simple. Let’s say this curve is pa…
ALUX AWARDS 2023
This is the best of ALUX. It’s like our own little award season where we look back through the year together and look at the highlights. As you would expect, we’ve got 15 categories to go through. We all talk about our favorite ALUX videos, about the bigg…