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

Ways to rewrite a percentage


2m read
·Nov 10, 2024

  • [Instructor] We're asked which of the following options have the same value as 2% of 90? Pause this video, and see if you can figure it out. And as a reminder, they say, pick two answers. All right, now let's work through this together.

So, before I even look at the choices, I'm just going to try to think of all of the ways that I can write 2% of 90. 2%, this right over here, this literally means two per 100. So I could view it as the same thing as two over 100, times 90; that's one way to write 2% of 90.

Two over 100, I can divide both the numerator and the denominator by two. And so, two over 100 is also the same thing as one over 50. And so it could also be one over 50, times 90. Now, let's see what other choices they have here.

Well, I could also write 2% as a decimal. Two-hundredths should be written like this. Zero point, this is the tenths place. I have no tenths, but I have two-hundredths. So, I'm multiplying that by 90. All of these right over here are equivalent to the 2%, 2% of 90.

All right, now let's look at the choices. This is 0.2 times 90. This is not 2%. This actually would be two-tenths, or 20%. So let me rule that one out.

This one right over here. This is two-hundredths times 90. We already wrote that down. I like this choice. 200 times 90. No, that would be far larger than what we are looking for. We are looking for two-hundredths, not two hundreds times 90, so definitely rule that one out.

Two times 90. Well, no, we're looking for 2% of 90, not two times 90. Once again, this is too large. And then we have two-hundredths times 90, which is the first thing that we wrote. And so I like this choice as well.

More Articles

View All
Introduction to centripetal force | AP Physics 1 | Khan Academy
Just for kicks, let’s imagine someone spinning a flaming tennis ball attached to some type of a string or chain that they’re spinning it above their head like this. Let’s say they’re spinning it at a constant speed. We’ve already described situations like…
8 Benefits Of Traveling Alone
The first time I truly traveled alone was around five years ago. I didn’t really know what to expect and how it would be to face the world equipped with a small trolley and backpack. Well, it was one of the greatest experiences I’ve ever had. So, I did it…
How Does Kodak Make Film? (Kodak Factory Tour Part 2 of 3) - Smarter Every Day 275
So we’re putting these on. We have to put clean suits on. Okay, sounds great. Oh, goggle up. Ah, yes. We’re gonna be doing pieces and parts, and I hope you guys know how to edit it all together. There’s a coater two. Okay, coater one. Oh my goodness, you…
Standard normal table for proportion above | AP Statistics | Khan Academy
A set of philosophy exam scores are normally distributed with a mean of 40 points and a standard deviation of 3 points. Ludwig got a score of 47.5 points on the exam. What proportion of exam scores are higher than Ludwig’s score? Give your answer correct …
Monopsony employers and minimum wages
In this video, we’re going to review what we’ve already learned about monopsony employers that we’ve covered in a previous video. But then we’re going to add a twist of adding a minimum wage and see what happens. And it’s actually interesting; it’s actual…
Touch - Mind Field (Ep 6)
- When it comes to illusions, optical illusions get all the attention. But the whole body you have can be fooled and can fool the brain. One of my favorite physical illusions is the thermal grill illusion. And you can do it right at home. I have some hot…