Answer:
Step-by-step explanation:
Given
Solving (a): 
This is calculated as:
Solving (b): 
This is calculated as:
-- this is so because the selection is without replacement
Solving (c): 
Using the complement rule, we have:
To calculate 
, we have:
--- Green
---- Not green
The probability that both selections are not green is:
So, we have:
Simplify
Recall that:
Take LCM
Answer:
1 1/2 + (-1/2) is also 1 1/2 - 1/2.
the result is 1 whole, and 1 whole is also the difference between 1 1/2 and 1/2.
Say you have half of a cheese piece, but your friend has 1 whole cheese piece plus half of a cheese piece.
He/She has 1 more cheese piece than you, right? That's the difference between you and your friend's cheese. 1 whole.
Answer:
I'm pretty sure it's a
Step-by-step explanation:
A:41
B:27
C:38
D:40
Answer:
7
Step-by-step explanation:
15+-8=7
Answer:
4
Step-by-step explanation:
Im assuming you mean the first and second equation equal each other:
3x+2=2x+6
x=4
