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.

TIL: You Might Be Related to Genghis Khan | Today I Learned
Where Is The U.S Dollar Heading? | Stansberry Research

More Articles

View All
Undefined limits by direct substitution | Limits and continuity | AP Calculus AB | Khan Academy
Let’s see if we can figure out the limit of x over natural log of x as x approaches one. Like always, pause this video and see if you can figure it out on your own. Well, we know from our limit properties this is going to be the same thing as the limit a…
Warren Buffett: How ANYONE Can Become Rich (5 Steps)
Omission is way bigger than commission. There’s big opportunities in life that have to be seized. Uh, we don’t do very many things, but when we get the chance to do something that’s right and big, we’ve got to do it. Even to do it on a small scale is just…
Kinetic energy | Energy | Middle school physics | Khan Academy
Hello everyone! Let’s talk about kinetic energy. Now, “kinetic” might be an unfamiliar word, but it just comes from a Greek word that means “of motion.” So, kinetic energy is energy from motion. Any massive object that is in motion then has kinetic energy…
Adding decimals with thousandths | Adding decimals | Grade 5 (TX TEKS) | Khan Academy
So what we have here are two questions where they’re asking us to add decimals. So pause this video and have a go at this before we do this together. All right, so let’s tackle this first question up here. What I like to do is line up these numbers based…
LearnStorm Growth Mindset: Dave Paunesku on student self-reflection
One important way that teachers can, uh, enhance a growth mindset is to really help students self-reflect on their own learning. So, in the LearnStorm activities, we try to be really intentional about, uh, creating a lot of room for students to engage in …
15 Investments Rich People Make The Poor Know Nothing About
Rich people are making bank in ways everyone else isn’t even aware of. If you watch Until the End, you’ll realistically learn more about money in this video than you did in an MBA course. Here are 15 investments rich people make the poor know nothing abou…