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Hidden 10 yrs ago Post by Legend
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Extra said
I'm at my moms and I can't RP much.


Ohhhh. Awww =(

How are you on, by the way?
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Legend said
Ohhhh. Awww =(How are you on, by the way?


It's late a dive been working on HW.
Hidden 10 yrs ago Post by Extra
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Gtg sleep. Night.
Hidden 10 yrs ago Post by Legend
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Extra said
Gtg sleep. Night.


Aww, night.
Hidden 10 yrs ago Post by whizzball1
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I'm totally not online
Hidden 10 yrs ago Post by Legend
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whizzball1 said
I'm totally not online


Okay.
Hidden 10 yrs ago Post by whizzball1
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So I had to come up with another simple proof. At a store there are cats, dogs, and bears. There are more cats than dogs, and more dogs than bears. Is there a way to prove that the fraction b/(c+d+b) is greater than 1/3? Or less? Or even equal? I reasoned that for b/c+d+b to be less than or equal to 1/3, the number of cats, dogs, and bears must be equal, or cats or dogs must be less than bears. Thus, since cats and dogs have to be greater than bears, b/c+d+b must be greater than 1/3. Is that sound?

EDIT: I just now realised that since the fraction mentioned is basically the ratio of bears to all other animals, and 3 things greater than 1/3 couldn't add up to a whole, the proof is definitely unsound. Blast it.
Hidden 10 yrs ago Post by Legend
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whizzball1 said
So I had to come up with another simple proof. At a store there are cats, dogs, and bears. There are more cats than dogs, and more dogs than bears. Is there a way to prove that the fraction b/(c+d+b) is greater than 1/3? Or less? Or even equal? I reasoned that for b/c+d+b to be less than or equal to 1/3, the number of cats, dogs, and bears must be equal, or cats or dogs must be less than bears. Thus, since cats and dogs have to be greater than bears, b/c+d+b must be greater than 1/3. Is that sound?EDIT: I just now realised that since the fraction mentioned is basically the ratio of bears to all other animals, and 3 things greater than 1/3 couldn't add up to a whole, the proof is definitely unsound. Blast it.


WHAT KIND OF STORE SELLS BEARS?????
Hidden 10 yrs ago Post by whizzball1
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Legend said
WHAT KIND OF STORE SELLS BEARS?????


I forgot to mention that it's a very unusual pet store.
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whizzball1 said
I forgot to mention that it's a very unusual pet store.


Regardless, there's no way to prove one thing or another. But seriously. Why bears?
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Legend said
Regardless, there's no way to prove one thing or another. But seriously. Why bears?


No idea.
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whizzball1 said
No idea.


School is just meant to teach people to be submissive and follow instructions.
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Legend said
School is just meant to teach people to be submissive and follow instructions.


Note that this question is from Khan Academy, and the videos of the owner of which are littered with silly situations. That specific one is my favourite so far now.
Hidden 10 yrs ago Post by Legend
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whizzball1 said
Note that this question is from Khan Academy, and the videos of the owner of which are littered with silly situations. That specific one is my favourite so far now.


Still. When do you need to know bears among dogs and cats?
Hidden 10 yrs ago Post by whizzball1
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Legend said
Still. When do you need to know bears among dogs and cats?


It's a question that's developing my algebraic reasoning. I don't ever need to know bears among dogs and cats, that's just what Khan chose to use as an example for reasoning. It's kind of ironic considering that the question is about reasoning and the situation defies all reason and logic. A pet store that sells cats, dogs, and bears.
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whizzball1 said
It's a question that's developing my algebraic reasoning. I don't ever need to know bears among dogs and cats, that's just what Khan chose to use as an example for reasoning. It's kind of ironic considering that the question is about reasoning and the situation defies all reason and logic. A pet store that sells cats, dogs, and .


That sounds so mechanic. You're a human being, not a robot; besides, it would be much more effective with an actual use rather than something nonsensical.
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Legend said
That sounds so You're a human being, not a robot; besides, it would be much more effective with an actual use rather than something nonsensical.


That's what my other curriculum for maths does. Life of Fred doesn't describe any maths at all until it's established a real life situation in which the maths is useful.
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whizzball1 said
That's what my other curriculum for maths does. Life of Fred doesn't describe any maths at all until it's established a real life situation in which the maths is useful.


One in which you may actually use it, or a very specific one such as a crane operator?
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Legend said
One in which you may actually use it, or a very specific one such as a crane operator?


Almost always something in which you'd actually use it. Here's an example from my Beginning Algebra book, Lesson 55: Solving Quadratic Equations by Factoring:

Heading back to the bunkhouse, Fred noticed that the eleven recruits had stopped watching television. They were engaged in something more constructive. On this sunny Sunday afternoon they were tearing a hole in the side of the bunkhouse. It was a nice big square hole. Fred stopped to watch. Everyone seemed busy. Pat was swinging a sledgehammer. Two of the guys were standing outside as lookouts. Fred guessed that they hadn't received permission to remodel their quarters. The only one not working on making the hole was Jack. Fred could see him through the hole in the wall. Jack was on the other side of the room working out with his weights.

Chris was on the phone with Waddle Windows (a subsidiary of Waddle Doughnuts). She was finding out the availability of various sizes of windows, and after several minutes of discussion, she ordered the largest one they offered. (Their motto is "A Wot of Window for a Wittle Price is What You Want at Waddle's.")

"You gotta make the hole a lot larger," she told Pat. "Six feet taller and six feet wider. The guy from Waddle said that that would let in four times as much light as what we've got now."

Fred decided not to go inside. He didn't want to be near what he thought might be a crime scene. He went and sat under a tree and thought about what he had heard: It was a square. If it was made six feet larger in each dimension, its area would quadruple. Was that enough information to find the current dimensions of the hole? Sometimes real life gives you enough information to solve a problem and sometimes it doesn't.

Here's where it starts talking about solving quadratic equations, but with factoring. (I can't actually solve them yet, I just turned to this page for an example.)
Hidden 10 yrs ago Post by Legend
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whizzball1 said
Almost always something in which you'd actually use it. Here's an example from my Beginning Algebra book, Lesson 55: Solving Quadratic Equations by Factoring:Heading back to the bunkhouse, Fred noticed that the eleven recruits had stopped watching television. They were engaged in something more constructive. On this sunny Sunday afternoon they were tearing a hole in the side of the bunkhouse. It was a nice big square hole. Fred stopped to watch. Everyone seemed busy. Pat was swinging a sledgehammer. Two of the guys were standing outside as lookouts. Fred guessed that they hadn't received permission to remodel their quarters. The only one not working on making the hole was Jack. Fred could see him through the hole in the wall. Jack was on the other side of the room working out with his weights.Chris was on the phone with Waddle Windows (a subsidiary of Waddle Doughnuts). She was finding out the availability of various sizes of windows, and after several minutes of discussion, she ordered the largest one they offered. (Their motto is "A Wot of Window for a Wittle Price is What You Want at Waddle's.")"You gotta make the hole a lot larger," she told Pat. "Six feet taller and six feet wider. The guy from Waddle said that that would let in four times as much light as what we've got now."Fred decided not to go inside. He didn't want to be near what he thought might be a crime scene. He went and sat under a tree and thought about what he had heard: Was that enough information to find the current dimensions of the hole? Sometimes real life gives you enough information to solve a problem and sometimes it doesn't.Here's where it starts talking about solving quadratic equations, but with factoring. (I can't actually solve them yet, I just turned to this page for an example.)


Oh, so it's something that you think you'll use, but you actually won't. I mean something common that you wouldn't actually consider something special.
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