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.

Destination Delicious: Experiencing Austin with an Appetite for Adventure | National Geographic

Linear velocity comparison from radius and angular velocity: Worked example | Khan Academy

View All

Howard Marks: 5 Strategies to Outperform the Market in 2021

Or number five, you can try to look for exceptions. What I call special niches, special people, who hopefully can produce a good return with safety in a low return world. But those people are truly exceptional and not easy to find. What inning do you see…

Why your life is so boring

When we think about our life, we usually think about it in the form of a story. You know, first we were born, and then we did some things and made some memories, and now we’re here and we work in our job or whatever. But in the future, we plan on doing mo…

The fastest way to ruin your entire life

Here’s another quick tutorial on how to ruin the rest of your life. Step one: Close your body language. Go throughout life with a closed body language. Slouch your shoulders, keep your head down, don’t make eye contact. Don’t give anybody the impression …

EPIC NOSE PICKING and why Football RULES -- IMG! #20

Master Chief loves football, and the most confused face ever. It’s a special football episode of IMG North American football. It gives you everything a guy could want: kicks to the face, kicks to the nuts, and heads up your butt. You get to pick; you can …

I got a CUSTOMIZED Credit Card from ZHC

Do you know about how much every single month you would just spend just on yourself? [Applause] Whatever we make, we spend. What’s the most you’ve spent for a video? Like anywhere from 300,000 to—Wow! What’s up you guys, it’s Graham here. So if you’ve sp…

Galaxies and gravity | Earth in space | Middle school Earth and space science | Khan Academy

Hello everyone! Today we’re going to be talking about galaxies and gravity. We know the Earth is a planet that is in orbit around the Sun. This is called the heliocentric model, and the solar system is an enormous space for us, encompassing every place th…

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

More Articles