Answer:
If there are 10 students taking only chemistry, 9 students taking only physics, and 5 students only taking both chemisty and 16 students are taking neither; I would add 10+9+5+16=40 (total students) and divide 10/40 (25% chemistry) 9/40 (22.5% physics) 5/40 (12.5% both) 16/40 (40% neither)
Step-by-step explanation:
1. Determine a single event with a single outcome.
2. Identify the total number of outcomes that can occur.
3. Divide the number of events by the number of possible outcomes.
In order to find the fraction of a pan that each person ate, we can divide the number of pans by the number of people:
![\frac{4}{24}=\frac{4\colon4}{24\colon4}=\frac{1}{6}](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B24%7D%3D%5Cfrac%7B4%5Ccolon4%7D%7B24%5Ccolon4%7D%3D%5Cfrac%7B1%7D%7B6%7D)
So each person ate 1/6 of a pan, therefore the correct option is the second one.
Answer:
C. 4
Step-by-step explanation:
To solve, set each parenthesis equal to the opposite side (0 in this case).
(x - 4)(x - 4) = 0
x - 4 = 0
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Add 4 to both sides:
x - 4 (+4) = 0 (+4)
x = 0 + 4
x = 4
Do the same for the other parenthesis:
x - 4 = 0
x - 4 (+4) = 0 (+4)
x = 0 + 4
x = 4
C. 4 is your answer.
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