A two-cube calendar is a consisting of two cubes with faces marked by digits 0 through 9. Each face of each cube is marked with a single digit, and it is possible to arrange the cubes so that any chosen day of the month (from 01, 02, ... through 31) is visible on the two front faces. A puzzle about the two-cube calendar was described in Gardner's column in Scientific American. In the puzzle discussed in Mathematical Circus (1992), two visible faces of one cube have digits 1 and 2 on them, and three visible faces of another cube have digits 3, 4, 5 on them. The cubes are arranged so that their front faces indicate the 25th day of the current month. The problem is to determine digits hidden on the seven invisible faces. Gardner wrote he saw a two-cube desk calendar in a store window in New York. According to a letter received by Gardner from John S. Singleton (England), Singleton patented the calendar in 1957, but the patent lapsed in 1965. A number of variations are manufactured and sold as souvenirs, differing in the appearance and the existence of additional bars or cubes to set the current month and the day of week. (Wikipedia).
Learning to solve a two step equation with inverse operations 2y+5=19
👉 Learn how to solve two step linear equations. A linear equation is an equation whose highest exponent on its variable(s) is 1. To solve for a variable in a two step linear equation, we first isolate the variable by using inverse operations (addition or subtraction) to move like terms to
From playlist Solve Two Step Equations
Solving an equation by combining like terms 6=5c–9–2c
👉 Learn how to solve two step linear equations. A linear equation is an equation whose highest exponent on its variable(s) is 1. To solve for a variable in a two step linear equation, we first isolate the variable by using inverse operations (addition or subtraction) to move like terms to
From playlist Solve Two Step Equations with Two Variables
Solving an equation by simplifying a side ex 1, 13=5+3b–13
👉 Learn how to solve two step linear equations. A linear equation is an equation whose highest exponent on its variable(s) is 1. To solve for a variable in a two step linear equation, we first isolate the variable by using inverse operations (addition or subtraction) to move like terms to
From playlist Solve Two Step Equations
Using a double negative in a one step equation, x - (-74) = -22
👉 Learn how to solve a one step equation. An equation is a statement stating that two values are equal. A one step equation is an equation whose solution can be obtained by performing only one step of operation on the equation. To solve a one step addition/subtraction equation, we isolate
From playlist How to Solve One Step Equations with Addition
Learn how to solve a two step inequality with a fraction
👉 Learn how to solve two-step linear inequalities and graph their solution. When solving two step inequalities we will use inverse operations, reverse order of operations and the properties of equality to solve. We will then graph our solution on a number line using open and closed point
From playlist Solve and Graph Inequalities | Two-Step
Lone Star Ruby Conference 2010 - Recurring Dates by John Crepezzi
Help us caption & translate this video! http://amara.org/v/He4F/
From playlist Lone Star Ruby Conference 2010
Solving and equation with the variable on the same side ex 3, 17=p–3–3p
👉 Learn how to solve two step linear equations. A linear equation is an equation whose highest exponent on its variable(s) is 1. To solve for a variable in a two step linear equation, we first isolate the variable by using inverse operations (addition or subtraction) to move like terms to
From playlist Solve Two Step Equations with Two Variables
O'Reilly Webcast: How to Make Holiday Photo Gifts
*Recording of Live Webcast In this hands-on webcast you'll learn how to create amazing photo gifts for your family, friends, and clients! Lesa will show you how to create beautiful gifts of all kinds. You'll learn how to make these projects in Photoshop as well as iPhoto, plus you'll disc
From playlist O'Reilly Webcasts 2
Solving an equation with variable on the same side
👉 Learn how to solve two step linear equations. A linear equation is an equation whose highest exponent on its variable(s) is 1. To solve for a variable in a two step linear equation, we first isolate the variable by using inverse operations (addition or subtraction) to move like terms to
From playlist Solve Two Step Equations with Two Variables
GCSE AQA Foundation Tier Paper 1 November 2018 Non Calc Paper Calibration with Cameron Wood(student)
Dear all Happy Saturday 31st July 2021, hope everyone is well and enjoying the summer holidays and summer period thus far. I have calibrated with a student to film and record this video and would like to thank this student for his fantastic hard work and dedication into calibrating wit
From playlist AQA GCSE Past Papers (Higher Tier and Foundation Tier)
The Coding Train: Live from the Attic 2!
To learn more about Brilliant, go to https://brilliant.org/CodingTrain and sign up for free. The first 200 people that go to that link will get 20% off the annual Premium subscription. Notion now comes with a free personal plan, learn more here: https://bit.ly/notioncodingtrain. Attemptin
From playlist Live Stream Archive
e VS. π - But which One IS Actually Greater?! [ TOP 10 MOST BRUTAL ANIME BATTLES ]
GET 15% OFF EVERYTHING! THIS IS EPIC! https://teespring.com/stores/papaflammy?pr=PAPAFLAMMY Help me create more free content! =) https://www.patreon.com/mathable AC Playlist: https://www.youtube.com/watch?v=jmD1CWzHjzU&list=PLN2B6ZNu6xmdvtm_DdFUaHIK_VB84hG_m Let us start off with Papa F
From playlist Integrals
2021 Math League Middle School State Live Solve - 1 by Po-Shen Loh
Welcome to the Official YouTube Channel of the Daily Challenge with Po-Shen Loh! Please subscribe to stay in touch. As the largest network of local and state math competitions at the elementary, middle, and high school levels in the United States and abroad, mathleague.org runs more than
From playlist Mathleague.org
Check out my newest video over on @FlammysWood where I started the Series "Mathematics for Woodworkers"! :) https://youtu.be/9BrPiLkmbAM 6.9% off all Handcrafted products, puzzles and more! :0 https://stemerch.eu/collections/handmade-by-stemerch-eu 10-15% off ALL my Merch using the code SI
From playlist Advent Calendar 2021
👉 Learn how to solve two step linear equations. A linear equation is an equation whose highest exponent on its variable(s) is 1. To solve for a variable in a two step linear equation, we first isolate the variable by using inverse operations (addition or subtraction) to move like terms to
From playlist Solve Two Step Equations
How to solve a one variable inequality and graph using two steps
👉 Learn how to solve two-step linear inequalities and graph their solution. When solving two step inequalities we will use inverse operations, reverse order of operations and the properties of equality to solve. We will then graph our solution on a number line using open and closed point
From playlist Solve and Graph Inequalities | Two-Step
GCSE Maths AQA November 2018 Paper 1 Foundation Walkthrough (*)
AQA GCSE Maths past paper November 2018 Foundation Tier - Paper 1 (non-calculator). Complete exam past paper walk through. Help revise for the 8300 new specification 9-1 mathematics exams and your mock. This walkthrough tutorial has full solutions to each question, so you can use it like
From playlist AQA GCSE Maths Practice Papers - All Paper Sets
Follow Journey to the Microcosmos: Twitter: https://twitter.com/journeytomicro Facebook: https://www.facebook.com/JourneyToMicro Support the Microcosmos: http://www.patreon.com/journeytomicro More from Jam’s Germs: Instagram: https://www.instagram.com/jam_and_germs YouTube: https://www.y
From playlist This Week in SciShow Oct. 23-29
Math Tutorial for Composing Two Functions
Learn how to compose two linear functions. To compose two functions means to express one of the functions as a function of the other function. This is done by replacing the input variable of one of the functions with the value of the second function. We will then simplify the composition a
From playlist How to Compose Two Functions (Linear) #Functions
I illustrate how to manually calculate skew and kurtosis with Google's daily price data from 2007. The point is the variance, skew and kurtosis are each related MOMENTS of the distribution. A normal distribution has skew = 0 and kurtosis = 3 https://www.dropbox.com/s/9ge1gckgqhahcou/2.a.1
From playlist Statistics: Distributions