Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #2 20140207 01:01:29
Re: AverageHi paulc; or simply In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #4 20140227 11:40:38
Re: AverageI haven't done much maths for years and was never much good at averages. How do I work out this problem? After 15 games, Ben's average score was 17. After 20 games, his average increased to 21. What was Ben's average number of points per game in the last 5 games? #5 20140227 18:52:14
Re: Averagehi Shishkin Av of 17 in 15 games means the total was 17 x 15 Av of 21 in 20 games means the total was 21 x 20 By subtracting one from the other you will get the score in the 5 new games. Then divide by 5. Hope that helps. Bob You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #7 20140310 09:21:15
Re: AverageI am stuck on a question #8 20140310 09:35:25
Re: AverageLet a, b, c be the wood pieces you have and let d be the piece you bought. Last edited by ShivamS (20140310 09:37:33) I have discovered a truly marvellous signature, which this margin is too narrow to contain. Fermat Give me a lever long enough and a fulcrum on which to place it, and I shall move the world. Archimedes Young man, in mathematics you don't understand things. You just get used to them.  Neumann #9 20140310 11:38:28
Re: AverageHi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. 