Solving unit rates problem | Ratios, proportions, units, and rates | Pre-Algebra | Khan Academy

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Finding a unit rate is a skill often required in real life. How fast is that plane flying? How many lawns can you mow in an afternoon? You see, with our knowledge of ratios and fractions, we can now solve unit rates problems like this.

Missed the previous lesson?

Pre-Algebra on Khan Academy: No way, this isn't your run of the mill arithmetic. This is Pre-algebra. You're about to play with the professionals. Think of pre-algebra as a runway. You're the airplane and algebra is your sunny vacation destination. Without the runway you're not going anywhere. Seriously, the foundation for all higher mathematics is laid with many of the concepts that we will introduce to you here: negative numbers, absolute value, factors, multiples, decimals, and fractions to name a few. So buckle up and move your seat into the upright position. We're about to take off!

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

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I like how I learn more from a two minute video than a forty five minute class

gumby
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Can you be my math teacher?
My math teacher makes it so confusing and you make it so simple. Your the only reason I am getting a A in math. Thank you so much!

alexadigiovanni
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This summer- my goal is to learn everything for sixth grade so I won't have trouble learning it next year. I am feeling so good learning so much!

youropinioncentral
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This guy explains stuff so much better too me then any teacher I have ever had, lol who needs 7 hours of school when this guy teaches you in two and a half minutes

whotheheckis_ray
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dammm this helped me with my homework! ty

kuhakuoreo
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This is very helpfully and I'm in 7th grade!

ms.boring
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I know how to do unit rates now ty!
XD 😂

mizzyturii
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My family is planning to donate 75 dollars to Kahn academy just as a little thank you, for supporting students who struggle financially or need a program to help. Since Kahn academy is not a math class with a plan for buying anything, the program helps so many students for topics they struggle with. Once again thank you so much, and everyone reading this comment, if you can please try to donate to Kahn academy!

aishwaryasridhar
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It's great how watching roughly five minutes worth of videos online helps more than a whole period of math class. Thanks, Khan Academy.

lilywalker
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Yay no more crying and wishing I was dead in math class🤣 ty so much for the help wish you were my teacher!

tiffanyparis
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When you forgot your unit and math and you have a test but forgot your studying materials

bigtony
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Thanks for this video I had no idea how to do it before this

clrxwipes
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Thank you! I've been out of school for a week and just got a bunch of math homework and this really helped me!!

sizlynn
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This is my math question:
*Write each comparison as a rate. Then write two equivalent rates for each comparison.*

a) Romana went snowboarding nine times in three months.

b) Miguel earns $32 dollars in 4 h.

*this really helped, thanks.*

aienxii
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Am I gonna use this in my daily life? But hey this helped get my homework done and made me understand it

Jprods
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He used my name lol but i love his vids its so easy!

kumakillxx
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khan academy makes the clearest explanation than any teachers made...

kanashiihanashi
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THX for the help, Sal. I needed help with my homework, and you are the only one there for me...

therealdeal
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Taking this as a review from last years algebra 1 class since I'm doing geometry this year! Big Help! And this is great because this was one of my struggles in that class

OlivesVids
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You're the reason I subscribed to you! Helpful!

raydonwaits