78 % of the class scored a C or above on their test. If there are 35 students in the class, how many scored a C or higher? Write
2 answers:
All this question is trying to ask is to find 78% percent of the total number of student in the class.
So first convert 78 to decimal by dividing it by 100:
Next multiply that with the total number of students which is 35.
So,
Now I don't think there can be a decimal here. The question must be wrong or the percentage might be incorrect. But, just for sake, we'll round it up so the final answer would be:
The proportion would be:
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Answer:
Rule: replace x by x - a where a is the number of units that you want to move right. a must be greater than 0. x - - a would move left.
Step-by-step explanation:
You want f(x) to move 3 units to the right.
That would mean that x would be replaced by x - 3. Just to be sure let's try it.
- Suppose you have f(x) = x^2 + 6x + 5 It is graphed as the red line
- Now suppose you want to move 3 units right.
- It would replaced like f(x - 3) = (x - 3)^2 + 6(x - 3) + 5 which is the blue line
- Notice nothing else is changed. The blue line looks exactly like the red line except that it is shifted 3 units to the right.
