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keke0529
13.07.2019 •
Mathematics
In the number 3,287,854 how many times greater is the value of the 8 in the ten thousands place compared to the value of the 8 in the hundreds place?
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Ответ:
8 in the 10,000s place is worth 80,000.
8 in the hundreds place is worth 800.
80,000/800 = 100
100 times.
Ответ:
n = size of the selection
r = number of items being picked
In the case of the question, there is a selection of 24 people of which 5 will be chosen to sit in the front row so:
n = 24
r = 5
The number of combinations is 24C5 = 42504
Note: scientific calculators, e.g. Casio ones, have a button for the nCr formula.