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2021 AMC 10A problems and solutions. The test will be held on Thursday, February , . Please do not post the problems or the solutions until the contest is released. 2021 AMC 10A Problems; 2021 AMC 10A Answer Key. Problem 1; Problem 2; Problem 3; Problem 4; Problem 5; Problem 6; Problem 7; Problem 8; Problem 9; Problem 10; Problem 11; Problem 12 ...
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Portia's high school has times as many students as Lara's high school. The two high schools have a total of students. How many students does Portia's high school have? Solution
The sum of two natural numbers is . One of the two numbers is divisible by . If the units digit of that number is erased, the other number is obtained. What is the difference of these two numbers? Solution
A cart rolls down a hill, travelling inches the first second and accelerating so that during each successive -second time interval, it travels inches more than during the previous -second interval. The cart takes seconds to reach the bottom of the hill. How far, in inches, does it travel? Solution
The quiz scores of a class with students have a mean of . The mean of a collection of of these quiz scores is . What is the mean of the remaining quiz scores in terms of ? Solution
Chantal and Jean start hiking from a trailhead toward a fire tower. Jean is wearing a heavy backpack and walks slower. Chantal starts walking at miles per hour. Halfway to the tower, the trail becomes really steep, and Chantal slows down to miles per hour. After reaching the tower, she immediately turns around and descends the steep part of the tra...
Tom has a collection of snakes, of which are purple and of which are happy. He observes that 1. all of his happy snakes can add, 1. none of his purple snakes can subtract, and 1. all of his snakes that can't subtract also can't add. Which of these conclusions can be drawn about Tom's snakes? Purple snakes can add. Purple snakes are happy. Snakes th...
When a student multiplied the number by the repeating decimal, where and are digits, he did not notice the notation and just multiplied times Later he found that his answer is less than the correct answer. What is the -digit number Solution
Two right circular cones with vertices facing down as shown in the figure below contain the same amount of liquid. The radii of the tops of the liquid surfaces are and . Into each cone is dropped a spherical marble of radius , which sinks to the bottom and is completely submerged without spilling any liquid. What is the ratio of the rise of the liq...
All the roots of the polynomial are positive integers, possibly repeated. What is the value of ? Solution
Values for and are to be selected from without replacement (i.e. no two letters have the same value). How many ways are there to make such choices so that the two curves and intersect? (The order in which the curves are listed does not matter; for example, the choices is considered the same as the choices ) Solution
2021 AMC 10A Problems, Solutions, and Explanations.For best quality, watch the video in 1080 pixels!Timestamps:00:00 Intro00:36 Problem 101:24 Problem 202:36...
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20:02 ET (00:02 GMT) 2 junio, 2021. Acciones de AMC suben gracias a Reddit 1:01. Nueva York (CNN Business) -- Las acciones de AMC, la cadena de cines más grande del mundo, aumentaron más del...
REUTERS. Las acciones de AMC se han disparado en bolsa más de un 1.600% desde comienzos de año. Varios gráficos que plasman la magnitud de este furor renovado por las cadenas de cine y que contrastan el apetito que ha acumulado durante el 2021. Descubre más historias en Business Insider España.
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3 de jun. de 2021 · Por -CNN- Acciones de AMC suben gracias a Reddit 1:01. (CNN) -- La secuela del aumento en las cotizaciones de acciones de empresas propiciadas por los seguidores de plataformas, como Reddit y...
