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In how many ways can you choose 2 side dishes out of 9?

There are 36 possible combinations.


How many two thirds cup cereal bowls can be filled from 10 cups of cornflakes?

10 cups is thirty "third-cups". so 30/2 ie 15 "two-third" cups.


How many combinations are there in 39 numbers?

It depends on how many numbers are in each combination. If there are 5 numbers in each combination, then you have 575,757 possibilities. If there are 2 in each combination, there you have 741 possibilities. If there's only 1 number in each combination, then there are only 39 possibilities.


How many ways can you choose 2 side dishes out of 9?

Assuming you want 2 different side dishes, they can be chosen in 9 × 8 ways, but as the order doesn't matter every combination has been chosen twice so that there are 9 × 8 ÷ 2 = 36 difference choices. There is a general formula for choosing r different items from a set of n items: nCr(n, r) = n!/(r!(n-r)!) where the exclamation mark means "factorial", which is n × (n-1) × (n-2) × ... × 2 × 1. eg 4! = 4 × 3 × 2 × 1 = 24. 0! is defined to be 1. For 2 items from 9 this gives: nCr(9, 2) = 9!/(2!(9-2)!) = 9!/(2!7!) = (9 × 8 × 7 × 6 × ... × 1)/((2 × 1) × (7 × 6 × ... × 1)) = (9 × 8)/2 = 36 (as before).


How many quarts equals a 9 in by 9 in dish?

A 9-inch by 9-inch dish typically holds about 2 quarts. This measurement can vary slightly based on the depth of the dish, but for standard baking dishes, 2 quarts is a common estimate.