why don't the videos match what the questions are talking about in the actual practice lesson?

This video uses the actual practice lesson. The format looks different because it is the old format that KA had until a couple of years ago. But the problems do come from the exercise set.

This video is so confusing that I feel brain dead like Kaminari...somone explain this more simple to me so I don't fry my brain with electric from my headphones because they are dead...

Thanks for advice. And at least someone understood my joke...I'm just trying to lighten up the mood with comedy from My Hero Academia..And I was trying to be funny, I like making jokes like that.

I don't understand why you didn't use 3(3t+4v) isn't it the same, just distributed backwards?

It's because 4 tulips (4T) and 3 violets (3V) is not the same thing as 3 tulips and 4 violets

this isnt helping at all

Well, it makes sense. Variables also have several unknowns. But it's one of each. 2V + V V in this case is equal to 1. So the solution is 3V. And remember the video before. The variable means 1V. V can be anything.

Solve the equation for x 5x squared minus 4x =6

I'll assume you mean 5x² - 4x = 6. First thing to do is to carry the 6 to the left side of the equal sign; 5x² - 4x - 6. Then you factor; in this case, you cannot, so use the quadratic formula and you'll be able to find your x. I hope this will help!

Main content

7th grade

Course: 7th grade > Unit 6

Lesson 3: Interpreting linear expressions

Interpreting linear expressions: flowers

Name: Interpreting linear expressions: flowers
Uploaded: 2013-08-09T20:31:23Z
Description: Let's practice matching expressions to their meaning in this example of interpreting linear expressions.

Google Classroom

Let's practice matching expressions to their meaning in this example of interpreting linear expressions. Created by Sal Khan.

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makayla
Posted 4 years ago. Direct link to makayla's post “why don't the videos matc...”
why don't the videos match what the questions are talking about in the actual practice lesson?
Button navigates to signup pageComment on makayla's post “why don't the videos matc...”
(11 votes)
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- Kim Seidel
  Posted 4 years ago. Direct link to Kim Seidel's post “This video uses the actua...”
  This video uses the actual practice lesson. The format looks different because it is the old format that KA had until a couple of years ago. But the problems do come from the exercise set.
  Comment on Kim Seidel's post “This video uses the actua...”
  (4 votes)
savannah.miracle
Posted 4 years ago. Direct link to savannah.miracle's post “This video is so confusin...”
This video is so confusing that I feel brain dead like Kaminari...somone explain this more simple to me so I don't fry my brain with electric from my headphones because they are dead...
Button navigates to signup pageComment on savannah.miracle's post “This video is so confusin...”
(8 votes)
Answer
- savannah.miracle
  Posted 4 years ago. Direct link to savannah.miracle's post “Thanks for advice. And at...”
  Thanks for advice. And at least someone understood my joke...I'm just trying to lighten up the mood with comedy from My Hero Academia..And I was trying to be funny, I like making jokes like that.
  Comment on savannah.miracle's post “Thanks for advice. And at...”
  (5 votes)
1400910
Posted 5 years ago. Direct link to 1400910's post “What is a linear expressi...”
What is a linear expression?\
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(4 votes)
Answer
- 0070175348
  Posted 5 years ago. Direct link to 0070175348's post “"It is made up of two exp...”
  "It is made up of two expressions set equal to each other. A linear equation is special because: It has one or two variables. No variable in a linear equation is raised to a power greater than 1 or used as the denominator of a fraction."
  
  For more information and reference go here:
  http://eduplace.com/math/mathsteps/7/d/index.html
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  (1 vote)
Victoria Johnson
Posted 8 years ago. Direct link to Victoria Johnson's post “I don't understand why yo...”
I don't understand why you didn't use 3(3t+4v) isn't it the same, just distributed backwards?
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(1 vote)
Answer
- T.jay
  Posted 7 years ago. Direct link to T.jay's post “It's because 4 tulips (4T...”
  It's because 4 tulips (4T) and 3 violets (3V) is not the same thing as 3 tulips and 4 violets
  Button navigates to signup page
  (4 votes)
@AEAO
Posted 2 months ago. Direct link to @AEAO's post “please help me understand...”
please help me understand (im a fearnot)
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(2 votes)
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kaeden
Posted 2 years ago. Direct link to kaeden's post “this isnt helping at all”
this isnt helping at all
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(1 vote)
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- Sansdacomic
  Posted 6 months ago. Direct link to Sansdacomic's post “Well, it makes sense. Var...”
  Well, it makes sense. Variables also have several unknowns. But it's one of each. 2V + V
  V in this case is equal to 1. So the solution is 3V.
  And remember the video before. The variable means 1V. V can be anything.
  Button navigates to signup page
  (2 votes)
Esther Matthew
Posted 3 years ago. Direct link to Esther Matthew's post “Solve the equation for x ...”
Solve the equation for x
5x squared minus 4x =6
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(1 vote)
Answer
- Victor
  Posted 3 years ago. Direct link to Victor's post “I'll assume you mean 5x² ...”
  I'll assume you mean 5x² - 4x = 6.
  First thing to do is to carry the 6 to the left side of the equal sign; 5x² - 4x - 6. Then you factor; in this case, you cannot, so use the quadratic formula and you'll be able to find your x. I hope this will help!
  Button navigates to signup page
  (2 votes)
ch9032649
Posted 3 years ago. Direct link to ch9032649's post “How did you get 4T + 3V?”
How did you get 4T + 3V?
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(1 vote)
Answer
- dixitamogha
  Posted 11 days ago. Direct link to dixitamogha's post “4T = 4 tulips 3V= 3 viole...”
  4T = 4 tulips
  3V= 3 violets
  4T + 3V = 1 buoquet, as stated in the video.
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  (1 vote)
Avey 阿韦盖尔
Posted 4 years ago. Direct link to Avey 阿韦盖尔's post “i dont get anything tho :...”
i dont get anything tho :(
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(1 vote)
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Tbirb
Posted 9 years ago. Direct link to Tbirb's post “Someone please help! The ...”
Someone please help! The format of the problem changed and I have problems converting what he said to my problem!
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(0 votes)
Answer

Video transcript

Martin likes to make flower bouquets that each have 3 violets and 4 tulips. If the price of a violet is V and the price of a tulip is T, match the expressions to their meanings. So let's see-- the price of 1 of Martin's bouquets. So one of Martin's bouquets has 3 violets and 4 tulips. So the 3 violets are going to cost 3 times the price of the violet, which is V. So that's the cost of the violets, 3V. And then the 4 tulips are going to cost 4 times the price of a tulip. So that's 4T. So it's 3V plus 4T. So it's not this one. Let's see. This one right over here, this is 4T plus 3V. So this is the price of 4 tulips, 4 times the price of a tulip, plus 3 times the price of a violet. The price of 3 of Martin's bouquets, so it's essentially going to be 3 times this quantity right over here. This is the price of 1 bouquet. We want 3 of them. So it's going to be 3 times the quantity 4T plus 3V. And let's see. If I were to actually multiply this out, 3 times 4T is 12T, and then plus 3 times 3V is 9V. So this is the same thing if I were to distribute the 3-- is 12T plus 9V. Well, that's this right over here. These two are equivalent expressions. And let's see. Are any of these other things equivalent? No, this says 3 times 3T plus 4V. So I'm going to put this in the not used bucket. And then I have-- let's see-- 3V plus 2T. I'm going to put it in the not used bucket. And let's see. This has 2V plus 4T plus V. So if I were to simplify this, if I were to combine the V terms-- if I have two V's and I add another V, that's three V's plus 4T. So this is actually the same thing as the price of 1 of Martin's bouquets. So you could view this as the price of 2 violets plus the price of 4 tulips plus another violet. So it's really the price of 3 violets and 4 tulips. So let's check our answer. We got it right.