Answer:
Neither arithmetic nor geometric.
Step-by-step explanation:
Average (mean) = (sum of all the data) / (# of data)
sum of all the data = (average)(# of data)
Thus for 100 students with an average of 93,
sum of all data = (93)(100) = 9300
and for 300 students with an average of 75,
sum of all data = (75)(300) = 22500
Therefore you would expect the overall average to be
(9300 + 22500) / (100 + 300) = 79.5 %
Now if there are x # of advanced students and y # of regular students, then
x + y = 90 (total # of students) and 93x + 75y = 87(x + y) (overall average)
The second equation can be simplified to x - 2y = 0
Subtracting the two equations yields
x = 60 and y = 90
Therefore you would need 60 advanced and 30 regular students.
Answer:
Multiply it by 100%
Step-by-step explanation:
1/2 = 1/2×100% = (1/2×100)% = 50% . . . . . for example
_____
Equivalently, express the ratio with 100 as the denominator.
... 1/2 × 50/50 = 50/100 = 50%
_____
It can be useful to think of "%" as a shorthand way to write "/100".
The answer to this question is true. Based on my knowledge and research, the deviation is, in fact, the difference between any value and the mean of the entire set.
Answer:
The student will be able to fill 5 1/2 cups of lemonade.
Step-by-step explanation:
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