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• 12:17, 14 August 2011 (diff | hist) . . (+392)‎ . . N 2009 AMC 8 Problems/Problem 6 ‎ (Created page with "Steve's empty swimming pool will hold <math> 24,000</math> gallons of water when full. It will be filled by <math> 4</math> hoses, each of which supplies <math> 2.5</math> gallon...")
• 12:16, 14 August 2011 (diff | hist) . . (+497)‎ . . N 2009 AMC 8 Problems/Problem 5 ‎ (Created page with "A sequence of numbers starts with <math> 1</math>, <math> 2</math>, and <math> 3</math>. The fourth number of the sequence is the sum of the previous three numbers in the sequenc...")
• 12:16, 14 August 2011 (diff | hist) . . (+1,578)‎ . . N 2009 AMC 8 Problems/Problem 4 ‎ (Created page with "The five pieces shown below can be arranged to form four of the five figures shown in the choices. Which figure [b]cannot[/b] be formed? <asy> defaultpen(linewidth(0.6)); size(8...")
• 12:13, 14 August 2011 (diff | hist) . . (+17,343)‎ . . 2010 AMC 8 ‎
• 12:03, 14 August 2011 (diff | hist) . . (+6)‎ . . 2008 AMC 8 ‎
• 12:02, 14 August 2011 (diff | hist) . . (+323)‎ . . 2008 AMC 8 ‎
• 12:00, 14 August 2011 (diff | hist) . . (+12,780)‎ . . N 2008 AMC 8 ‎ (Created page with "==Problem 1== Susan had <math>$50</math> to spend at the carnival. She spent <math>$12</math> on food and twice as much on rides. How many dollars did she have left to ...")
• 10:20, 14 August 2011 (diff | hist) . . (+131)‎ . . N AoPS Wiki:Problem of the Day/August 14, 2011 ‎ (Created page with "Find all natural numbers <math>n</math> for which each natural number written with <math>n-1</math>'ones' and one 'seven' is prime.") (current)
• 10:15, 14 August 2011 (diff | hist) . . (-1)‎ . . 2009 AMC 8 Problems/Problem 25 ‎
• 10:14, 14 August 2011 (diff | hist) . . (+2,627)‎ . . N 2009 AMC 8 Problems/Problem 25 ‎ (Created page with "==Problem== A one-cubic-foot cube is cut into four pieces by three cuts parallel to the top face of the cube. The first cube is <math> \tfrac12 </math> foot from the top face. ...")
• 10:09, 14 August 2011 (diff | hist) . . (+830)‎ . . N 2009 AMC 8 Problems/Problem 24 ‎ (Created page with "==Problem== The letters <math>A</math>, <math>B</math>, <math>C</math> and <math>D</math> represent digits. If <math> \begin{tabular}{ccc}&A&B\\ +&C&A\\ \hline &D&A\end{tabular...")
• 10:00, 14 August 2011 (diff | hist) . . (-176)‎ . . 2010 AMC 8 ‎ (Blanked the page)
• 09:51, 14 August 2011 (diff | hist) . . (+13)‎ . . 2010 AMC 10B Problems/Problem 23 ‎
• 09:51, 14 August 2011 (diff | hist) . . (+530)‎ . . N 2010 AMC 10B Problems/Problem 23 ‎ (Created page with "The entries in a <math>3x3</math> array include all the digits from 1 through 9, arranged so that the entries in every row and column are in increasing order. How many such array...")
• 09:47, 14 August 2011 (diff | hist) . . (+747)‎ . . N 2003 AMC 10B Problems/Problem 24 ‎ (Created page with "==Problem== The first four terms in an arithmetic sequence are <math>x+y</math>,<math>x-y</math> ,<math>xy</math> , and <math>\frac{x}{y}</math>, in that order. What is the fi...")
• 09:45, 14 August 2011 (diff | hist) . . (+288)‎ . . 2003 AMC 10B Problems/Problem 23 ‎
• 09:44, 14 August 2011 (diff | hist) . . (+691)‎ . . N 2003 AMC 10B Problems/Problem 23 ‎ (Created page with "A regular octagon <math> ABCDEFGH </math> has an area of one square unit. What is the area of the rectangle <math> ABEF </math>? <asy> unitsize(8mm); defaultpen(linewidth(.8pt)+...")
• 14:32, 8 August 2011 (diff | hist) . . (+140)‎ . . N AoPS Wiki:Problem of the Day/August 8, 2011 ‎ (Created page with "What is the sum of the coefficients of the polynomial <math> f(x) </math>, where <math> f(x) = x^{1000000}+x^{998001}+.....+x^{4}+x </math>?") (current)
• 20:57, 2 August 2011 (diff | hist) . . (+507)‎ . . N 2009 AMC 8 Problems/Problem 23 ‎ (Created page with "On the last day of school, Mrs. Wonderful gave jelly beans to her class. She gave each boy as many jelly beans as there were boys in the class. She gave each girl as many jelly b...")
• 19:42, 1 August 2011 (diff | hist) . . (+815)‎ . . N 2009 AMC 8 Problems/Problem 3 ‎ (Created page with "The graph shows the constant rate at which Suzanna rides her bike. If she rides a total of a half an hour at the same speed, how many miles would she have ridden? <asy> import g...")
• 19:38, 1 August 2011 (diff | hist) . . (+315)‎ . . N 2009 AMC 8 Problems/Problem 2 ‎ (Created page with "On average, for every 4 sports cars sold at the local dealership, 7 sedans are sold. The dealership predicts that it will sell 28 sports cars next month. How many sedans does it ...")
• 19:38, 1 August 2011 (diff | hist) . . (+301)‎ . . N 2009 AMC 8 Problems/Problem 1 ‎ (Created page with "Bridget bought a bag of apples at the grocery store. She gave half of the apples to Ann. Then she gave Cassie 3 apples, keeping 4 apples for herself. How many apples did Bridget ...")
• 19:58, 28 July 2011 (diff | hist) . . (+528)‎ . . N 2000 AMC 8 Problems/Problem 25 ‎ (Created page with "The area of rectangle <math>ABCD</math> is <math>72</math>. If point <math>A</math> and the midpoints of <math> \overline{BC} </math> and <math> \overline{CD} </math> are joined ...")
• 19:57, 28 July 2011 (diff | hist) . . (+412)‎ . . N 2000 AMC 8 Problems/Problem 23 ‎ (Created page with "There is a list of seven numbers. The average of the first four numbers is <math>5</math>, and the average of the last four numbers is <math>8</math>. If the average of all seven...")
• 19:56, 28 July 2011 (diff | hist) . . (+544)‎ . . N 2000 AMC 8 Problems/Problem 24 ‎ (Created page with "If <math> \angle A = 20^\circ </math> and <math> \angle AFG =\angle AGF </math>, then <math> \angle B+\angle D = </math> <asy> pair A,B,C,D,EE,F,G; A = (0,0); B = (9,4); C = (21...")
• 19:55, 28 July 2011 (diff | hist) . . (+703)‎ . . N 2000 AMC 8 Problems/Problem 22 ‎ (Created page with "A cube has edge length <math>2</math>. Suppose that we glue a cube of edge length <math>1</math> on top of the big cube so that one of its faces rests entirely on the top face of...")
• 19:55, 28 July 2011 (diff | hist) . . (+288)‎ . . N 2000 AMC 8 Problems/Problem 21 ‎ (Created page with "Keiko tosses one penny and Ephraim tosses two pennies. The probability that Ephraim gets the same number of heads that Keiko gets is <math> \text{(A)}\ \frac{1}{4}\qquad\text{(B...")
• 19:54, 28 July 2011 (diff | hist) . . (-5)‎ . . 2000 AMC 8 Problems/Problem 20 ‎
• 19:53, 28 July 2011 (diff | hist) . . (+297)‎ . . N 2000 AMC 8 Problems/Problem 20 ‎ (Created page with "You have nine coins: a collection of pennies, nickels, dimes, and quarters having a total value of <math> $1.02 </math>, with at least one coin of each type. How many dimes m...")
• 19:53, 28 July 2011 (diff | hist) . . (+575)‎ . . N 2000 AMC 8 Problems/Problem 19 ‎ (Created page with "Three circular arcs of radius <math>5</math> units bound the region shown. Arcs <math>AB</math> and <math>AD</math> are quarter-circles, and arc <math>BCD</math> is a semicircle....")
• 19:51, 28 July 2011 (diff | hist) . . (+863)‎ . . N 2000 AMC 8 Problems/Problem 18 ‎ (Created page with "Consider these two geoboard quadrilaterals. Which of the following statements is true? <asy> for (int a = 0; a < 5; ++a) { for (int b = 0; b < 5; ++b) { dot((a,b)); } } draw((0,...")
• 19:49, 28 July 2011 (diff | hist) . . (+340)‎ . . N 2000 AMC 8 Problems/Problem 17 ‎ (Created page with "The operation <math> \otimes </math> is defined for all nonzero numbers by <math> a\otimes b =\frac{a^{2}}{b} </math>. Determine <math> [(1\otimes 2)\otimes 3]-[1\otimes (2\otime...")
• 19:48, 28 July 2011 (diff | hist) . . (+755)‎ . . N 2000 AMC 8 Problems/Problem 15 ‎ (Created page with "Triangles <math> ABC </math>, <math>ABD</math>, and <math>EFG</math> are all equilateral. Points <math>D</math> and <math>G</math> are midpoints of <math> \overline{AC} </math> a...")
• 19:46, 28 July 2011 (diff | hist) . . (+563)‎ . . N 2000 AMC 8 Problems/Problem 13 ‎ (Created page with "In triangle <math>CAT</math>, we have <math> \angle ACT =\angle ATC </math> and <math> \angle CAT = 36^\circ </math>. If <math> \overline{TR} </math> bisects \angle ATC <math>, ...")
• 19:45, 28 July 2011 (diff | hist) . . (+606)‎ . . N 2000 AMC 8 Problems/Problem 12 ‎ (Created page with "A block wall 100 feet long and 7 feet high will be constructed using blocks that are 1 foot high and either 2 feet long or 1 foot long (no blocks may be cut). The vertical joins ...")
• 19:40, 28 July 2011 (diff | hist) . . (-66)‎ . . 2002 AMC 8 Problems/Problem 20 ‎
• 19:39, 28 July 2011 (diff | hist) . . (+982)‎ . . N 2002 AMC 8 Problems/Problem 20 ‎ (Created page with "The area of triangle <math>XYZ</math> is 8 square inches. Points <math>A</math> and <math>B</math> are midpoints of congruent segments <math> \overline{XY} </math> and <math> \ov...")
• 19:38, 28 July 2011 (diff | hist) . . (+1,124)‎ . . N 2002 AMC 8 Problems/Problem 23 ‎ (Created page with "A portion of a corner of a tiled floor is shown. If the entire floor is tiled in this way and each of the four corners looks like this one, then what fraction of the tiled floor ...")
• 19:36, 28 July 2011 (diff | hist) . . (-55)‎ . . 2002 AMC 8 Problems/Problem 15 ‎
• 19:36, 28 July 2011 (diff | hist) . . (+900)‎ . . N 2002 AMC 8 Problems/Problem 15 ‎ (Created page with "[asy] size(330); int i,j,k; for(i=0;i<5; i=i+1) { for(j=0;j<5;j=j+1) { for(k=0;k<5;k=k+1) { dot((6i+j, k)); }}} draw((0,0)--(4,0)--(3,1)--(3,3)--(2,3)--(2,1)--(1,1)--cycle); draw...")
• 19:36, 28 July 2011 (diff | hist) . . (+178)‎ . . N 2002 AMC 8 Problems/Problem 19 ‎ (Created page with "How many whole numbers between 99 and 999 contain exactly one 0? <math> \text{(A)}\ 72\qquad\text{(B)}\ 90\qquad\text{(C)}\ 144\qquad\text{(D)}\ 162\qquad\text{(E)}\ 180 </math>")
• 19:35, 28 July 2011 (diff | hist) . . (+375)‎ . . N 2002 AMC 8 Problems/Problem 18 ‎ (Created page with "Gage skated 1 hr 15 min each day for 5 days and 1 hr 30 min each day for 3 days. How long would he have to skate the ninth day in order to average 85 minutes of skating each day ...")
• 19:35, 28 July 2011 (diff | hist) . . (+333)‎ . . N 2002 AMC 8 Problems/Problem 17 ‎ (Created page with "In a mathematics contest with ten problems, a student gains 5 points for a correct answer and loses 2 points for an incorrect answer. If Olivia answered every problem and her sco...")
• 19:34, 28 July 2011 (diff | hist) . . (+257)‎ . . N 2002 AMC 8 Problems/Problem 21 ‎ (Created page with "Harold tosses a nickel four times. The probability that he gets at least as many heads as tails is <math> \text{(A)}\ \frac{5}{16}\qquad\text{(B)}\ \frac{3}{8}\qquad\text{(C)}\ ...")
• 19:34, 28 July 2011 (diff | hist) . . (+739)‎ . . N 2002 AMC 8 Problems/Problem 22 ‎ (Created page with "Six cubes, each an inch on an edge, are fastened together, as shown. Find the total surface area in square inches. Include the top, bottom and sides. <asy> /* AMC8 2002 #22 Prob...")
• 19:33, 28 July 2011 (diff | hist) . . (+421)‎ . . N 2002 AMC 8 Problems/Problem 24 ‎ (Created page with "Miki has a dozen oranges of the same size and a dozen pears of the same size. Miki uses her juicer to extract 8 ounces of pear juice from 3 pears and 8 ounces of orange juice fro...")
• 19:33, 28 July 2011 (diff | hist) . . (+454)‎ . . N 2002 AMC 8 Problems/Problem 25 ‎ (Created page with "Loki, Moe, Nick and Ott are good friends. Ott had no money, but the others did. Moe gave Ott one-fifth of his money, Loki gave Ott one-fourth of his money and Nick gave Ott one-t...")
• 19:26, 28 July 2011 (diff | hist) . . (-132)‎ . . AMC 8 Problems and Solutions ‎
• 19:22, 28 July 2011 (diff | hist) . . (-1)‎ . . 2004 AMC 8 Problems ‎
• 19:05, 28 July 2011 (diff | hist) . . (-12)‎ . . AMC 8 Problems and Solutions ‎

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