Answer:

Step-by-step explanation:
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Required
Find P(A n B)
where
A = Event that the place is a city
B = Event that the place is in North
The first step is to get the sample space;
Let S represent the sample space;


The next is to list events A and B
A = City

B = North America

The next is to list common elements in A and B


The probability of A and B is calculated as follows;

Substitute
and
in the expression above

Answer:
or 
Step-by-step explanation:
Substitution means plugging in one variable's value that consists of the opposite variable. Because
is already specified, you can plug it into the second equation's
value. After doing that, it looks like this:

Then you would distribute the
across the parentheses next to it, like this:

Then, add like terms, like this:

Then divide both side by
to isolate
.

Now, you can plug
(
) into either equation, but the first one seems simpler so you would pick that. It would look like this:

Solving would look like this:

So the answer is
or
.
Answer:

Step-by-step explanation:
Answer:
17= 2/3
13,,,a=> (5x+5) (x+3)
Step-by-step explanation:
.........................
Forgive me if wrong
2+x=50
That is what I would do. I hope this helps!