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a (the variable) would equal 17. in order of inverse operations: * 49+36=85 * 85/5=17
It is 31, the middle value when the are arranged in order.
Put them in order and it will be the 25th number.
₄₉C₅ = the number of ways a group of 5 items can be chosen from a selection of 49. As a group it does not matter in which order the 5 are selected. It is calculated as: ₄₉C₅ = 49! / ((49-5)! 5!) = 49! / (44! 5!) = 49 × 48 × 47 × 46 × 45 / 5 × 4 × 3 × 2 × 1 = 1,906,884 (The font used to display Answers has a very bad exclamation mark (!) which looks like a vertical bar. 49! is 49 factorial and 49! = 49 × 48 × 47 × ... × 3 × 2 × 1)
In order to change 4 9/10 into an improper fraction, you multiply 4 by 10 and add 9 which equals 49. Then you put 49 over 10 so the answer is 49/10.