Answer:

Step-by-step explanation:
The union of two sets P and Q, denoted as
is the set of all elements that are in the set P or in the set Q or in both sets P and Q.
Given:
P = {7, 8, 9, 10, 11}
Q = {1, 2, 3, 4, 5}
Then

When writing the union set, simply write all elements from both sets in on set.
Alright! We know that the total number of students is 100%. So, if 65% of the students brought a hot lunch, in order to find how many students brought a packed lunch you subtract it from 100%:
[100 - 65] = 35
So 35% of the students brought a packed lunch. Now, in order to find the fraction of students you simply put 35% of students over the total percent of students (100%)"
[35/100]
Then you simply:
[35/100] ⇒ [7/20]
The answer is 7/20ths of the students brought a packed lunch.
More:
Decimal form - .35
Percentage form - 35%
X equals 53/11 , y equals -16/11
They are both addictive I believe. The graph thing because it doesn’t go through the 0 and the table because you can just add 4.2 plus 1.3 and it equals 5.5. The same follows for the rest.