290
7*20=140
+10 (1/2 of 20)=290
R is the only one that would work. Think of it like a mirror
The rubric of 150 is the sim of the square but the area would be 59 which would equal to the amount of 50
The minimum number of socks that she needs to get such that a pair is always formed is 5.
<h3>
</h3><h3>
How many socks must she get to be ensured of having a pair?</h3>
We know that she has:
- 10 white socks.
- 10 black socks
- 10 brown socks
- 10 blue socks.
First, we need to compute the maximum number of socks she needs to take in such a case that no pair is formed.
That will be 4, and represents the case where:
1 white sock, 1 black sock, 1 brown sock, and 1 blue sock are drawn. At that point, no pairs are formed.
Now, if she draws another sock, a pair will always be formed.
From this, we conclude that if she draws 5 socks, always at least one pair will be formed.
If you want to learn more about combinations, you can read:
brainly.com/question/11732255
Answer:
no solution !
Step-by-step explanation:
because when you do the solving steps:
Distributative Property
combine like terms
x goes away bc you subtract 3x from 3x
therefor NO solution
Hope this helps ;)
