User contributions
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- 15:59, 29 January 2021 (diff | hist) . . (+316) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 24)
- 15:55, 29 January 2021 (diff | hist) . . (+708) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 23 (Created page with "== Problem == A cube measures 10 by 10 by 10 cm. Three cuts are made parallel to the faces of the cube as shown (in three perpendicular directions) creating eight separate sol...") (current)
- 15:50, 29 January 2021 (diff | hist) . . (+315) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 23)
- 15:47, 29 January 2021 (diff | hist) . . (+547) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 21 (Created page with "== Problem == Ten points are spaced equally around a circle. How many different chords can be formed by joining any 2 of these points? (A chord is a straight line joining two...") (current)
- 15:45, 29 January 2021 (diff | hist) . . (+214) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 21)
- 15:43, 29 January 2021 (diff | hist) . . (+545) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 22 (Created page with "== Problem == Each time a bar of soap is used, its volume decreases by 10%. What is the minimum number of times a new bar would have to be used so that less than one-half its...") (current)
- 15:42, 29 January 2021 (diff | hist) . . (+183) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 22)
- 15:40, 29 January 2021 (diff | hist) . . (+760) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 15 (Created page with "== Problem == The diagram shows a magic square in which the sums of the numbers in any row, column or diagonal are equal. What is the value of n? [A 3x3 magic square grid is...") (current)
- 15:39, 29 January 2021 (diff | hist) . . (0) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 15)
- 15:38, 29 January 2021 (diff | hist) . . (+349) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 15)
- 15:36, 29 January 2021 (diff | hist) . . (+3) . . 1998 CEMC Gauss (Grade 7) Problems/Problem 14 (→Solution) (current)
- 15:36, 29 January 2021 (diff | hist) . . (+480) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 14 (Created page with "== Problem == A cube has a volume of <math>125 \text{cm}^3.</math> What is the area of one face of the cube? <math>\text{(A)}\ 20 \text{cm}^2 \qquad \text{(B)}\ 25 \text{cm}...")
- 15:35, 29 January 2021 (diff | hist) . . (+179) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 14)
- 15:33, 29 January 2021 (diff | hist) . . (+548) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 13 (Created page with "== Problem == The pattern of figures (triangle, dark circle, square, dark triangle, circle) is repeated over and over again. The 214th figure in the sequence is <math>\text{...") (current)
- 15:32, 29 January 2021 (diff | hist) . . (+215) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 13)
- 15:24, 29 January 2021 (diff | hist) . . (-39) . . 1998 CEMC Gauss (Grade 7) Problems/Problem 12 (→Solution) (current)
- 15:22, 29 January 2021 (diff | hist) . . (+1) . . 1998 CEMC Gauss (Grade 7) Problems/Problem 12 (→Solution)
- 15:21, 29 January 2021 (diff | hist) . . (+653) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 12 (Created page with "== Problem == Steve plants ten trees every three minutes. If he continues planting at the same rate, how long will it take him to plant 2500 trees? <math>\text{(A)}\ 1 \dfrac...")
- 15:19, 29 January 2021 (diff | hist) . . (+212) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 12)
- 15:15, 29 January 2021 (diff | hist) . . (+963) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 11 (Created page with "== Problem == Kalyn cut rectangle R from a sheet of paper. A smaller rectangle is then cut from the large rectangle R to produce figure S. In comparing R to S, [R is a rectan...") (current)
- 15:13, 29 January 2021 (diff | hist) . . (+496) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 11)
- 15:07, 29 January 2021 (diff | hist) . . (+1) . . 1998 CEMC Gauss (Grade 7) Problems/Problem 10 (→Solution) (current)
- 15:07, 29 January 2021 (diff | hist) . . (+484) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 10 (Created page with "== Problem == At the waterpark, Bonnie and Wendy decided to race each other down a waterslide. Wendy won by 0.25 seconds. If Bonnie’s time was exactly 7.80 seconds, how lon...")
- 14:59, 29 January 2021 (diff | hist) . . (+224) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 10)
- 14:59, 29 January 2021 (diff | hist) . . (+224) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 10)
- 14:57, 29 January 2021 (diff | hist) . . (+359) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 9 (Created page with "== Problem == Two numbers have a sum of 32. If one of the numbers is – 36, what is the other number? <math>\text{(A)}\ 68 \qquad \text{(B)}\ -4 \qquad \text{(C)}\ 4 \qquad...") (current)
- 14:55, 29 January 2021 (diff | hist) . . (+100) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 9)
- 14:54, 29 January 2021 (diff | hist) . . (+575) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 8 (Created page with "== Problem == Tuesday’s high temperature was 4 C warmer than that of Monday’s. Wednesday’s high temperature was 6 C cooler than that of Monday’s. If Tuesday’s high...") (current)
- 14:52, 29 January 2021 (diff | hist) . . (-34) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 8)
- 14:42, 29 January 2021 (diff | hist) . . (+30) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 8)
- 14:37, 29 January 2021 (diff | hist) . . (+252) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 8)
- 14:30, 29 January 2021 (diff | hist) . . (+1,072) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 25 (Created page with "== Problem == Two natural numbers, <math>p</math> and <math>q,</math> do not end in zero. The product of any pair, <math>p</math> and <math>q,</math> is a power of 10 (that i...")
- 14:15, 29 January 2021 (diff | hist) . . (+267) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 25)
- 14:13, 29 January 2021 (diff | hist) . . (+203) . . N 1998 CEMC Gauss (Grade 7) Answer Key (Created page with "===Part 1=== 1. A 2. E 3. B 4. B 5. D 6. A 7. C 8. C 9. A 10. C ===Part 2=== 11. E 12. E 13. D 14. B 15. E 16. A 17. C 18. E 19. A 20. B ===Part 3=== 21. B...") (current)
- 14:05, 29 January 2021 (diff | hist) . . (+569) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 7 (Created page with "== Problem == A rectangular field is 80 m long and 60 m wide. If fence posts are placed at the corners and are 10 m apart along the 4 sides of the field, how many posts are ne...")
- 14:03, 29 January 2021 (diff | hist) . . (+207) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 7)
- 14:02, 29 January 2021 (diff | hist) . . (+1) . . m 1998 CEMC Gauss (Grade 7) Problems/Problem 6 (→Solution) (current)
- 14:02, 29 January 2021 (diff | hist) . . (+631) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 6 (Created page with "== Problem == In the multiplication question, the sum of the digits in the four boxes is: [Multiply <math>879 \times 492</math> using long multiplication. Find the sum of the...")
- 13:59, 29 January 2021 (diff | hist) . . (+216) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 6)
- 13:57, 29 January 2021 (diff | hist) . . (+432) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 5 (Created page with "== Problem == If a machine produces 150 items in one minute, how many would it produce in 10 seconds? <math>\text{(A)}\ 10 \qquad \text{(B)}\ 15 \qquad \text{(C)}\ 20 \qquad...") (current)
- 13:55, 29 January 2021 (diff | hist) . . (+98) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 5)
- 13:54, 29 January 2021 (diff | hist) . . (+470) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 4 (Created page with "== Problem 4 == Jean writes five tests and achieves the marks shown on the graph. What is her average mark on these five tests? [insert bar graph with 5 bars: 80, 70, 60, 90,...") (current)
- 13:54, 29 January 2021 (diff | hist) . . (0) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 4)
- 13:52, 29 January 2021 (diff | hist) . . (+174) . . 1998 CEMC Gauss (Grade 7) Problems (→Problem 4)
- 13:48, 29 January 2021 (diff | hist) . . (+369) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 3 (Created page with "== Problem == If <math>S = 6\times 10,000 + 5\times 1,000 + 4\times 10 + 3\times 1</math>, what is <math>S</math>? <math>\text{(A)}\ 6,543 \qquad \text{(B)}\ 65,043 \qquad \...")
- 13:45, 29 January 2021 (diff | hist) . . (+399) . . N 1998 CEMC Gauss (Grade 7) Problems/Problem 2 (Created page with "== Problem == The number <math>4567</math> is tripled. The ones digit (units digit) in the resulting number is <math>\text{(A)}\ 5 \qquad \text{(B)}\ 6 \qquad \text{(C)}\ 7...")
- 12:33, 29 January 2021 (diff | hist) . . (+103) . . 2007 iTest Problems/Problem 1 (→Solution) (current)
- 10:42, 29 January 2021 (diff | hist) . . (+527) . . m 1972 AHSME Problems/Problem 24 (→Solution)
- 10:39, 29 January 2021 (diff | hist) . . (+371) . . 1972 AHSME Problems/Problem 27 (→Solution)
- 10:28, 29 January 2021 (diff | hist) . . (+774) . . N 1972 AHSME Problems/Problem 28 (Created page with "== Problem 28 == A circular disc with diameter <math>D</math> is placed on an <math>8\times 8</math> checkerboard with width <math>D</math> so that the centers coincide. The...")
- 10:14, 29 January 2021 (diff | hist) . . (+39) . . m 1972 AHSME Problems/Problem 25 (→Solution) (current)
- 10:07, 29 January 2021 (diff | hist) . . (+929) . . N 1972 AHSME Problems/Problem 15 (Created page with "== Problem == A contractor estimated that one of his two bricklayers would take <math>9</math> hours to build a certain wall and the other <math>10</math> hours. However,...") (current)
- 09:48, 29 January 2021 (diff | hist) . . (+860) . . N 1972 AHSME Problems/Problem 14 (Created page with "== Problem == A triangle has angles of <math>30^\circ</math> and <math>45^\circ</math>. If the side opposite the <math>45^\circ</math> angle has length <math>8</math>, then...")
- 09:39, 29 January 2021 (diff | hist) . . (+660) . . N 1972 AHSME Problems/Problem 12 (Created page with "== Problem == The number of cubic feet in the volume of a cube is the same as the number of square inches in its surface area. The length of the edge expressed as a number...") (current)
- 21:56, 28 January 2021 (diff | hist) . . (+761) . . N 1972 AHSME Problems/Problem 10 (Created page with "== Problem == For <math>x</math> real, the inequality <math>1\le |x-2|\le 7</math> is equivalent to <math>\textbf{(A) }x\le 1\text{ or }x\ge 3\qquad \textbf{(B) }1\le x\le...") (current)
- 21:49, 28 January 2021 (diff | hist) . . (+838) . . N 1972 AHSME Problems/Problem 9 (Created page with "== Problem == Ann and Sue bought identical boxes of stationery. Ann used hers to write <math>1</math>-sheet letters and Sue used hers to write <math>3</math>-sheet letters....") (current)
- 21:46, 28 January 2021 (diff | hist) . . (+746) . . N 1972 AHSME Problems/Problem 8 (Created page with "== Problem == If <math>|x-\log y|=x+\log y</math> where <math>x</math> and <math>\log y</math> are real, then <math>\textbf{(A) }x=0\qquad \textbf{(B) }y=1\qquad \textbf{(C)...") (current)
- 21:36, 28 January 2021 (diff | hist) . . (+617) . . N 1972 AHSME Problems/Problem 7 (Created page with "== Problem == If <math>yz:zx:xy=1:2:3</math>, then <math>\dfrac{x}{yz}:\dfrac{y}{zx}</math> is equal to <math>\textbf{(A) }3:2\qquad \textbf{(B) }1:2\qquad \textbf{(C) }1:...") (current)
- 21:30, 28 January 2021 (diff | hist) . . (+677) . . N 1972 AHSME Problems/Problem 2 (Created page with "== Problem == If a dealer could get his goods for <math>8</math>% less while keeping his selling price fixed, his profit, based on cost, would be increased to <math>(x+10)<...") (current)
- 21:10, 28 January 2021 (diff | hist) . . (+686) . . N 1971 AHSME Problems/Problem 21 (Created page with "== Problem == If <math>\log_2(\log_3(\log_4 x))=\log_3(\log_4(\log_2 y))=\log_4(\log_2(\log_3 z))=0</math>, then the sum <math>x+y+z</math> is equal to <math>\textbf{(A) }50...") (current)
- 21:01, 28 January 2021 (diff | hist) . . (+876) . . N 1971 AHSME Problems/Problem 19 (Created page with "== Problem == If the line <math>y=mx+1</math> intersects the ellipse <math>x^2+4y^2=1</math> exactly once, then the value of <math>m^2</math> is <math>\textbf{(A) }\textstyl...") (current)
- 20:52, 28 January 2021 (diff | hist) . . (+842) . . N 1971 AHSME Problems/Problem 17 (Created page with "== Problem == A circular disk is divided by <math>2n</math> equally spaced radii(<math>n>0</math>) and one secant line. The maximum number of non-overlapping areas into whi...") (current)
- 20:29, 28 January 2021 (diff | hist) . . (+888) . . N 1971 AHSME Problems/Problem 33 (Created page with "== Problem == If <math>P</math> is the product of <math>n</math> quantities in Geometric Progression, <math>S</math> their sum, and <math>S'</math> the sum of their reciproca...") (current)
- 20:17, 28 January 2021 (diff | hist) . . (+1,516) . . N 1971 AHSME Problems/Problem 26 (Created page with "== Problem == <asy> size(2.5inch); pair A, B, C, E, F, G; A = (0,3); B = (-1,0); C = (3,0); E = (0,0); F = (1,2); G = intersectionpoint(B--F,A--E); draw(A--B--C--cycle); draw...") (current)
- 20:09, 28 January 2021 (diff | hist) . . (+828) . . N 1971 AHSME Problems/Problem 20 (Created page with "== Problem == The sum of the squares of the roots of the equation <math>x^2+2hx=3</math> is <math>10</math>. The absolute value of <math>h</math> is equal to <math>\textbf{(...") (current)
- 20:02, 28 January 2021 (diff | hist) . . (+845) . . N 1971 AHSME Problems/Problem 16 (Created page with "== Problem == After finding the average of <math>35</math> scores, a student carelessly included the average with the <math>35</math> scores and found the average of these <...") (current)
- 19:51, 28 January 2021 (diff | hist) . . (+1,222) . . N 1971 AHSME Problems/Problem 9 (Created page with "== Problem 9 == An uncrossed belt is fitted without slack around two circular pulleys with radii of <math>14</math> inches and <math>4</math> inches. If the distance between...") (current)
- 19:23, 28 January 2021 (diff | hist) . . (+594) . . N 1971 AHSME Problems/Problem 14 (Created page with "== Problem == The number <math>(2^{48}-1)</math> is exactly divisible by two numbers between <math>60</math> and <math>70</math>. These numbers are <math>\textbf{(A) }61,63\...") (current)
- 19:19, 28 January 2021 (diff | hist) . . (+775) . . N 1971 AHSME Problems/Problem 10 (Created page with "== Problem == Each of a group of <math>50</math> girls is blonde or brunette and is blue eyed of brown eyed. If <math>14</math> are blue-eyed blondes, <math>31</math> are br...") (current)
- 18:07, 28 January 2021 (diff | hist) . . (+759) . . N 1971 AHSME Problems/Problem 8 (Created page with "== Problem == The solution set of <math>6x^2+5x<4</math> is the set of all values of <math>x</math> such that <math>\textbf{(A) }\textstyle -2<x<1\qquad \textbf{(B) }-\frac...") (current)
- 18:00, 28 January 2021 (diff | hist) . . (+1,505) . . N 1971 AHSME Problems/Problem 6 (Created page with "==Problem== Let <math>\ast</math> be the symbol denoting the binary operation on the set <math>S</math> of all non-zero real numbers as follows: For any two numbers <math>a<...") (current)
- 17:07, 28 January 2021 (diff | hist) . . (+1) . . 1971 AHSME Problems/Problem 4 (→Solution)
- 17:07, 28 January 2021 (diff | hist) . . (+989) . . N 1971 AHSME Problems/Problem 4 (Created page with "==Problem== After simple interest for two months at <math>5</math>% per annum was credited, a Boy Scout Troop had a total of <math>\textdollar 255.31</math> in the Council T...")
- 16:45, 28 January 2021 (diff | hist) . . (+8) . . 1981 AHSME Problems/Problem 16 (→Solution (Long Way))
- 16:44, 28 January 2021 (diff | hist) . . (-274) . . 1981 AHSME Problems/Problem 16
- 16:36, 28 January 2021 (diff | hist) . . (+786) . . N 1981 AHSME Problems/Problem 11 (Created page with "==Problem 11== The three sides of a right triangle have integral lengths which form an arithmetic progression. One of the sides could have length <math> \textbf{(A)}\ 22\qqua...") (current)
- 16:28, 28 January 2021 (diff | hist) . . (+845) . . N 1981 AHSME Problems/Problem 8 (Created page with "==Problem 8== For all positive numbers <math>x</math>, <math>y</math>, <math>z</math>, the product <cmath> (x+y+z)^{-1}(x^{-1}+y^{-1}+z^{-1})(xy+yz+xz)^{-1}[(xy)^{-1}+(yz)^{-...") (current)
- 16:18, 28 January 2021 (diff | hist) . . (+507) . . N 1981 AHSME Problems/Problem 7 (Created page with "==Problem 7== How many of the first one hundred positive integers are divisible by all of the numbers <math>2</math>, <math>3</math>, <math>4</math>, and <math>5</math>? <mat...") (current)
- 16:16, 28 January 2021 (diff | hist) . . (+912) . . N 1981 AHSME Problems/Problem 5 (Created page with "==Problem 5== In trapezoid <math>ABCD</math>, sides <math>AB</math> and <math>CD</math> are parallel, and diagonal <math>BD</math> and side <math>AD</math> have equal length....") (current)
- 16:03, 28 January 2021 (diff | hist) . . (+835) . . N 1981 AHSME Problems/Problem 16 (Created page with "==Problem== The base three representation of <math>x</math> is <cmath>12112211122211112222</cmath> The first digit (on the left) of the base nine representation of <math>x</m...")
- 15:55, 28 January 2021 (diff | hist) . . (+647) . . N 1981 AHSME Problems/Problem 6 (Created page with "==Problem== If <math>\frac{x}{x-1} = \frac{y^2 + 2y - 1}{y^2 + 2y - 2},</math> then <math>x</math> equals <math>\text{(A)} \quad y^2 + 2y - 1</math> <math>\text{(B)} \quad y...") (current)
- 15:48, 28 January 2021 (diff | hist) . . (+754) . . N 1981 AHSME Problems/Problem 4 (Created page with "==Problem== If three times the larger of two numbers is four times the smaller and the difference between the numbers is 8, the the larger of two numbers is: <math>\text{(A)...") (current)
- 15:39, 28 January 2021 (diff | hist) . . (+2) . . User:Coolmath34 (→About Me)
- 15:39, 28 January 2021 (diff | hist) . . (-32) . . User:Coolmath34 (→About Me)
- 15:37, 28 January 2021 (diff | hist) . . (-640) . . User:Coolmath34
- 15:37, 28 January 2021 (diff | hist) . . (-353) . . User:Coolmath34
- 15:37, 28 January 2021 (diff | hist) . . (-180) . . User:Coolmath34
- 15:37, 28 January 2021 (diff | hist) . . (-28) . . User:Coolmath34
- 21:18, 12 March 2018 (diff | hist) . . (0) . . 2011 AMC 10A Problems/Problem 4 (→Note)
- 21:14, 12 March 2018 (diff | hist) . . (+345) . . N 1981 AHSME Problems/Problem 9 (Created page with "Because the space diagonal of a cube with side length <math>s</math> is <math>s \sqrt{3},</math> the side length of the cube in this problem is <math>\frac{a}{\sqrt{3}}.</math...") (current)
- 09:31, 22 February 2018 (diff | hist) . . (-12) . . 2018 AMC 10A Problems/Problem 20 (→Solution 1)
- 22:25, 30 January 2018 (diff | hist) . . (+4) . . 2011 AMC 10A Problems/Problem 4 (→Note)
- 22:25, 30 January 2018 (diff | hist) . . (+261) . . 2011 AMC 10A Problems/Problem 4 (→Solution 1)
- 19:27, 24 December 2017 (diff | hist) . . (+909) . . N 2008 iTest Problems/Problem 15 (Created page with "==Problem== How many four-digit multiples of <math>8</math> are greater than <math>2008</math>? ==Solution== We can make a list of four-digit multiples of <math>8</math> that...")
- 22:20, 21 December 2017 (diff | hist) . . (+371) . . N 2008 iTest Problems/Problem 3 (Created page with "(storyline deleted) What is the average of <math>181,</math> <math>197,</math> <math>203,</math> <math>204,</math> <math>212,</math> and <math>227?</math> ==Solution== The a...")
- 21:05, 4 December 2017 (diff | hist) . . (+289) . . User:Coolmath34 (→Math Career)
- 21:04, 4 December 2017 (diff | hist) . . (+1,213) . . N User:Coolmath34 (stuff of a cubed penguin called coolmath34)
- 18:50, 22 November 2017 (diff | hist) . . (-843) . . 2017 AMC 8 Problems/Problem 15 (→Alternate Solution)
- 18:50, 22 November 2017 (diff | hist) . . (+3) . . 2017 AMC 8 Problems/Problem 15 (→Alternate Solution)
- 18:49, 22 November 2017 (diff | hist) . . (+1,340) . . 2017 AMC 8 Problems/Problem 15 (→Solution)
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