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Solving Inequalities Using Addition, Subtraction, Multiplication, and Division 6333 Views
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Description:
Solving inequalities using blob fish? Yes, please!
- Algebra and Functions / Inequalities
- Algebra / Understand solving equations as a process of reasoning
- Algebra / Understand solving equations as a process of reasoning and explain the reasoning
- Algebra / Solve equations and inequalities in one variable
- Algebra / Solve equations and inequalities in one variable
- Algebra / Solve equations and inequalities in one variable
- Algebra / Understand solving equations as a process of reasoning
- Algebra / Understand solving equations as a process of reasoning
- Algebra / Solve equations and inequalities in one variable
Transcript
- 00:04
Solving Inequalities Using Addition, Subtraction, Multiplication and Division, a la Shmoop.
- 00:10
The local aquarium is throwing a Save the Blobfish fundraiser. [Man and little girl looking at fish in an aquarium]
- 00:13
No one cares about the poor blobfish...
- 00:16
Only cute animals get love. You and your friend want to save the blobfish. [Friends stood with a blobfish]
- 00:21
But no one else shows up.
Full Transcript
- 00:23
Your oh so generous mom gave you $6 to contribute to the fund. She loves the blobfish. [Mother gives 6 dollars to save the blobfish]
- 00:28
Unfortunately, the fundraiser doesn't allow total donations more than $30, thanks to tax regulations.
- 00:35
What is the most amount of money you and your friend can each contribute?
- 00:40
We may not be able to save the blobfish... [Blobfish flushed down a toilet]
- 00:42
But we can solve this problem.
- 00:44
Let's let x be the maximum amount of money you and your friend can EACH contribute,
- 00:50
Since both of you are contributing x dollars, we can write that as 2x.
- 00:55
And don't forget your mom's generous $6 donation to the cause.
- 00:58
So the total we can contribute is 2x + 6.
- 01:04
BUT the maximum we can donate is $30, so 2x + 6 is less than or equal to 30. [Maths formula shown and Uncle Sam appears]
- 01:12
Now to solve this pressing issue.
- 01:15
First we'll subtract six from each side...
- 01:17
That leaves us with 2x is less than or equal to 24.
- 01:22
Now we need to divide both sides by two.
- 01:25
That gives us x is less than or equal to 12. So you and your friend can each contribute $12. [Two friends contributing 12 dollars to save blobfish]
- 01:32
You'll either have to get more friends to
- 01:34
donate money or ask the president to change the tax regulations. Good luck with that..
- 01:39
Starving blobfish in the Pacific need your help today. [Blobfish holding up a sign to work for krill]
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