Gh0sty15

Yes.

Example: There are 5 bacteria-infested cupcakes. You throw 2 away and eat the rest. Then you can use science to figure out if you're going to get sick. (Or common sense)

Actually, I think there are many mathematical equations that are used in science...

There are many better answers than this, but science isn't really my thing...

I think that there is a huge difference between Algebra 2 and Pre-cal. 

Much harder...

Well, um...I don't know if I fully understand this topic, but I'll try to answer  .

n(A x B) when distributed would be n(A)* n(B).

And n(A x B) is 75.

We also know n(A) = 15.

So if n(A)* n(B) is equivalent to n(A x B), then n(A)* n(B) = 75.

N(A) is 15, so substitute 15 for n(A) to get 15* n(B) = 75.

Divide both sides by 15 and get n(B) = 5.

So n(B) = 5.

Correct me if I'm wrong.

I think it is an answer that you have gotten by solving, but doesn't work when you plug it in the original equation.

Could anyone give a better/correct answer?

Well, let's say the list price is x. 

And if the price was 1/4 off the list price (this is discount, right?), then it would be the price would be x*0.75

But we know Saidhari bought the toaster oven for $90.00 (dollars, right?). 

So the equation would be 90.00 = x*0.75

Divide both sides by 0.75 and get 120 = x.

So the list price was $120.00.

Correct me if I'm wrong. 

Well, if it's a square background, then the length of two sides must be the same. So we can square root 256 to get the length of one side.  You can plug that into a calculator, but it's easy to memorize that it is 16.

I don't really know what you want to know...but here are some possible answers: 

Length of one side: 16 meters

The total length of fence needed: 64 meters

Correct me if I'm wrong. (Getting a lot of questions wrong these days...)

No wait. I'll leave my answer. People can learn by my mistake too. 

Always think positively. 

Oops. Sorry Alan. Sorry. I'll delete my answer. Sorry guest.

What's wrong with me these days?

Did you say it was 6?

So we have the equation 60/5(7-5).

First simplify the '7-5' in the brackets to get 60/5(2)

Simplify again and get 60/10

And that's just dividing 60 by 10, so the answer is 6.

6 is our answer.

Not 24.

New update: I think this answer is wrong. Look at Alan's answer. Sorry.