CentsLord

Well, I would disagree, as they are 70 units apart on a number line, which is quite a difference!

So, your question rephrased is: \(3 * 5 - 9\).

Using the order of operations, we do the multiplication first.

\(3*5\) is 3 sets of 5, meaning that you add 5 to itself 3 times. This is \(5+5+5=15\).

So, our equation now is \(15-9\).

Using the method of subtraction, we get \(15-9=6\),

So, the answer to the equation \(3*5-9\) is \(6\) :D

o _ O I have realized I've been doing that without realizing it! :D

Cool! I never knew there was a method to it - Always just used intuition :)

A) I'm not sure, but I think 𝑝̂ is the percentage. The fraction for this would be 14581 / 107109, the decimal being 0.136132... :)

The percentage would be 100 times the decimal, so that's around 13.613 % people positive :D

B) Here, we just find 13.613 percent of 11.69 million people. That would be 13.613 / 100    *    11,690,000 = an estimate of around 1,591,359 people positive :D

This is solving for x. :)

xy = 3x + 2y + z, right? So, we can divide both sides by y to get

x = (3x + 2y + z) / y :D

Is that it? Do we need to do anything more?

Binary is fun.

The answer is 1011011001 :D

oops forgot to log in, I'm CentsLord xD

The average, which is the median in this case, has been removed. That would be 85 :D

w0t? BTW there are 8 options for the first position. I'm not sure I understood the last few lines, but I could be wrong!

First, we need to place "123" in the string of 7 digits. There are 5 ways to do that.

Now, we have to place 8 digits in the first digit, at 0 cannot be one. So far, there are 5 * 8 = 40 ways.

Now, we simply have to place digits in the remaining 3 digits. There are 9³ = 729 ways to do that. 

Therefore, there are 40 * 729 = 29160 phone numbers :D