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  • ...spent <math>25</math> cents less. Ben paid <math>$12.50</math> more than David. How much did they spend in the bagel store together? ...re than David, then he paid <math>\frac{12.5}{.25}= $ 50.00</math>. Thus, David paid <math>$ 37.50</math>, and they spent <math>50.00+37.50 =$ 87.50 \imp
    1 KB (176 words) - 09:58, 16 June 2023
  • '''David Patrick''' is a teacher and curriculum developer for [[Art of Problem Solvi ...ttended the [[Mathematical Olympiad Summer Program]] (where, incidentally, he first met [[Richard Rusczyk]], the founder of AoPS).
    3 KB (379 words) - 10:18, 27 September 2024
  • **David Stoner **Xiaoyu He
    10 KB (1,351 words) - 22:12, 12 October 2024
  • In 1808 he refined his conjecture to and he was able to give
    11 KB (1,749 words) - 21:52, 10 January 2025
  • <math>0 \le \Re(s) \le 1</math>. He conjectured that they all lie on the * Koch, Helmut (trans. David Kramer), ''Number Theory: Algebraic Numbers and Functions.'' AMS 2000, ISB
    9 KB (1,547 words) - 02:04, 13 January 2021
  • Elmo makes <math>N</math> sandwiches for a fundraiser. For each sandwich he uses <math>B</math> globs of peanut butter at <math>4\cent</math> per glob https://www.youtube.com/watch?v=dIaBGFwwZEc ~David
    2 KB (394 words) - 09:55, 24 June 2024
  • ...Every day, he either gains <math>$3</math> or doubles the amount of money he had on the previous day. How many different dollar amounts could Taye have ==Video Solution by Dr. David (Tree Method)==
    3 KB (476 words) - 16:29, 19 January 2025
  • ...da for the twentieth century". (Devlin 2003, pp. 2&ndash;3) These problems he believed to be the most significant and important unsolved in mathematics. ...and 11. These were his first public presentation of the important results he had published earlier, in November 2002 and March 2003.
    13 KB (1,969 words) - 16:57, 22 February 2024
  • ...doghouse has a regular hexagonal base that measures one yard on each side. He is tethered to a vertex with a two-yard rope. What is the area, in square y gives him <math>\frac{8\pi}{3}</math>. He can also reach two <math>\frac{60}{360}</math> parts of a unit circle, whic
    1 KB (217 words) - 17:41, 15 October 2024
  • The theorem is named for [[David Hilbert]], one of the great He first stated and proved the theorem in 1888, using a nonconstructive
    4 KB (617 words) - 18:59, 23 April 2023
  • * 2022 - Victor Chen, Christopher Sakaliyski, Dou Lai, Jonathan He (43rd) * 2010 - Ravi Jagadeesan (21st), James Tao (13th), Kevin He, Kevin Sun (28th), Coach: Suzanne Croco
    5 KB (745 words) - 23:35, 4 July 2024
  • In order for Mateen to walk a kilometer (1000m) in his rectangular backyard, he must walk the length 25 times or walk its perimeter 10 times. What is the a https://www.youtube.com/watch?v=ib2x_b3LNj8 ~David
    948 bytes (143 words) - 19:05, 15 April 2023
  • Since Ott gets equal amounts of money from each friend, we can say that he gets <math>x</math> dollars from each friend. This means that Moe has <math https://www.youtube.com/watch?v=F-ZvPoJdnfk ~David
    2 KB (286 words) - 15:14, 30 December 2024
  • Harold tosses a coin four times. The probability that he gets at least as many heads as tails is https://www.youtube.com/watch?v=4vLTPszBLeg ~David
    1,021 bytes (157 words) - 13:33, 29 October 2024
  • ...h> hr <math>30</math> min each day for <math>3</math> days. How long would he have to skate the ninth day in order to average <math>85</math> minutes of https://www.youtube.com/watch?v=Ea1C64_qBH4 ~David
    2 KB (268 words) - 13:32, 29 October 2024
  • ...Ephriam, there are 2 ways since there are <math>2</math> choices for when he can flip the head. So, in total there are <math>2 \cdot 1 = 2</math> ways f https://www.youtube.com/watch?v=mLrtRuJuYI4 ~David
    3 KB (417 words) - 01:00, 29 December 2024
  • Mr. Harman needs to know the combined weight in pounds of three boxes he wants to mail. However, the only available scale is not accurate for weight https://www.youtube.com/watch?v=LKhOV9p4WiY ~David
    1 KB (234 words) - 23:57, 27 October 2024
  • ...bed around the Star of David. What is the ratio of the area of the Star of David to the area of the circle? (Proposed by SP343) ...The boy that is drawing next is allergic to raisins and tells the man so. He replies, "Very well. In your draw, if at any time you draw a chocolate bar,
    15 KB (2,444 words) - 20:46, 1 January 2012
  • ...to <math>S</math>. Player <math>B</math> may ask as many such questions as he wishes. After each question, player <math>A</math> must immediately answer ...h>x</math> belongs to <math>X</math>, then <math>B</math> wins; otherwise, he loses. Prove that:
    5 KB (834 words) - 10:00, 24 February 2021
  • ...ilbert's 1900 lecture before the International Congress of Mathematicians, he states that "We may therefore say that [hyperbolic geometry] is a geometry
    800 bytes (118 words) - 19:57, 3 November 2024

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