jocejay83681
09.07.2019 •
Mathematics
What is the common ratio in the sequence 6,12,24,48,96 a -2 b 2 c 6 d 1/2
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Ответ:
The ratio is that of one term to the one before:
... 12/6 = 2
It is "common" because it applies to every pair of adjacent terms:
... 24/12 = 48/24 = 96/48 = 2
The appropriate choice is ...
... B 2
Ответ:
Isn't it just
Mean = (total points of all the tests) divided by (number of tests) ?
Let's work with that.
Multiply each side of that formula by (number of tests), and you have
Total points of all the tests = (Mean) times (number of tests).
In this problem, you know the mean, and you know the number of tests,
so you can easily calculate the total points.