Basic College Mathematics (5th Edition)
Basic College Mathematics (5th Edition)
5th Edition
ISBN: 9780321950970
Author: Elayn Martin-Gay
Publisher: PEARSON
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 5, Problem 50CR
To determine

To write: The ratio 900 to 9000 using fractional notation and simplify the result.

Blurred answer
Students have asked these similar questions
The basketball team at Bakersfield High School recorded their wins and losses of the season. The table given shows the data collected, in which the relationship between wins and losses is sorted by number of points scored.   ≥ 100 points < 100 points Total Win 48   90 Loss 6     Total     100 Does the data give evidence of an association between scoring at least 100 points during the game and the basketball team winning?    There is a weak, negative association. There is a weak, positive association. There is a strong, positive association. There is a strong, negative association.
Crumbs Cookies was interested in seeing if there was an association between cookie flavor and whether or not there was frosting. Given are the results of the last week's orders.   Frosting No Frosting Total Sugar Cookie 50     Red Velvet   66 136 Chocolate Chip   58   Total 220   400 Which category has the greatest joint frequency?    Chocolate chip cookies with frosting  Sugar cookies with no frosting  Chocolate chip cookies  Cookies with frosting
Graphically, explain the various forms of linear functions

Chapter 5 Solutions

Basic College Mathematics (5th Edition)

Ch. 5.1 - Prob. 3VRVCh. 5.1 - Prob. 4VRVCh. 5.1 - Prob. 5VRVCh. 5.1 - Prob. 6VRVCh. 5.1 - Prob. 7VRVCh. 5.1 - Prob. 8VRVCh. 5.1 - Prob. 1ECh. 5.1 - Prob. 2ECh. 5.1 - Prob. 3ECh. 5.1 - Prob. 4ECh. 5.1 - Prob. 5ECh. 5.1 - Prob. 6ECh. 5.1 - Prob. 7ECh. 5.1 - Prob. 8ECh. 5.1 - Prob. 9ECh. 5.1 - Prob. 10ECh. 5.1 - Prob. 11ECh. 5.1 - Prob. 12ECh. 5.1 - Prob. 13ECh. 5.1 - Prob. 14ECh. 5.1 - Prob. 15ECh. 5.1 - Prob. 16ECh. 5.1 - Mixed Practice Write each ratio as a ratio of...Ch. 5.1 - Mixed Practice Write each ratio as a ratio of...Ch. 5.1 - Prob. 19ECh. 5.1 - Prob. 20ECh. 5.1 - Prob. 21ECh. 5.1 - Prob. 22ECh. 5.1 - Mixed Practice Write each ratio as a ratio of...Ch. 5.1 - Prob. 24ECh. 5.1 - Prob. 25ECh. 5.1 - Prob. 26ECh. 5.1 - Prob. 27ECh. 5.1 - Prob. 28ECh. 5.1 - Prob. 29ECh. 5.1 - Prob. 30ECh. 5.1 - Prob. 31ECh. 5.1 - Prob. 32ECh. 5.1 - Prob. 33ECh. 5.1 - Prob. 34ECh. 5.1 - Prob. 35ECh. 5.1 - Prob. 36ECh. 5.1 - Prob. 37ECh. 5.1 - Prob. 38ECh. 5.1 - Prob. 39ECh. 5.1 - Prob. 40ECh. 5.1 - Prob. 41ECh. 5.1 - Prob. 42ECh. 5.1 - Prob. 43ECh. 5.1 - Prob. 44ECh. 5.1 - Prob. 45ECh. 5.1 - Prob. 46ECh. 5.1 - Prob. 47ECh. 5.1 - Prob. 48ECh. 5.1 - Prob. 49ECh. 5.1 - Prob. 50ECh. 5.1 - Prob. 51ECh. 5.1 - Prob. 52ECh. 5.1 - Prob. 53ECh. 5.1 - Prob. 54ECh. 5.1 - Prob. 55ECh. 5.1 - Prob. 56ECh. 5.1 - Prob. 57ECh. 5.1 - Prob. 58ECh. 5.1 - Prob. 59ECh. 5.1 - Prob. 60ECh. 5.1 - Prob. 61ECh. 5.1 - Prob. 62ECh. 5.1 - Prob. 63ECh. 5.1 - Prob. 64ECh. 5.1 - Prob. 65ECh. 5.1 - Prob. 66ECh. 5.1 - Prob. 67ECh. 5.1 - Prob. 68ECh. 5.1 - Prob. 69ECh. 5.1 - Prob. 70ECh. 5.1 - Prob. 71ECh. 5.1 - Prob. 72ECh. 5.1 - Prob. 73ECh. 5.2 - Prob. 1PCh. 5.2 - Prob. 2PCh. 5.2 - Prob. 3PCh. 5.2 - Prob. 4PCh. 5.2 - Prob. 5PCh. 5.2 - Prob. 6PCh. 5.2 - Prob. 7PCh. 5.2 - Prob. 1VRVCh. 5.2 - Prob. 2VRVCh. 5.2 - Prob. 3VRVCh. 5.2 - Prob. 4VRVCh. 5.2 - Prob. 5VRVCh. 5.2 - Prob. 1ECh. 5.2 - Prob. 2ECh. 5.2 - Prob. 3ECh. 5.2 - Prob. 4ECh. 5.2 - Prob. 5ECh. 5.2 - Prob. 6ECh. 5.2 - Prob. 7ECh. 5.2 - Prob. 8ECh. 5.2 - Prob. 9ECh. 5.2 - Prob. 10ECh. 5.2 - Prob. 11ECh. 5.2 - Prob. 12ECh. 5.2 - Prob. 13ECh. 5.2 - Prob. 14ECh. 5.2 - Prob. 15ECh. 5.2 - Prob. 16ECh. 5.2 - Prob. 17ECh. 5.2 - Prob. 18ECh. 5.2 - Prob. 19ECh. 5.2 - Prob. 20ECh. 5.2 - Prob. 21ECh. 5.2 - Write each rate as a unit rate. See Examples 4 and...Ch. 5.2 - Prob. 23ECh. 5.2 - Prob. 24ECh. 5.2 - Prob. 25ECh. 5.2 - Prob. 26ECh. 5.2 - Prob. 27ECh. 5.2 - Prob. 28ECh. 5.2 - Prob. 29ECh. 5.2 - Prob. 30ECh. 5.2 - Prob. 31ECh. 5.2 - Prob. 32ECh. 5.2 - Prob. 33ECh. 5.2 - Prob. 34ECh. 5.2 - Prob. 35ECh. 5.2 - Prob. 36ECh. 5.2 - Prob. 37ECh. 5.2 - Prob. 38ECh. 5.2 - Prob. 39ECh. 5.2 - Prob. 40ECh. 5.2 - Find each unit price. See Example 6. $1.19 for 7...Ch. 5.2 - Find each unit price. See Example 6. $73.50 for 6...Ch. 5.2 - Objective C Find each unit price. See Example...Ch. 5.2 - Prob. 44ECh. 5.2 - Prob. 45ECh. 5.2 - Prob. 46ECh. 5.2 - Prob. 47ECh. 5.2 - Prob. 48ECh. 5.2 - Prob. 49ECh. 5.2 - Prob. 50ECh. 5.2 - Prob. 51ECh. 5.2 - Find each unit price. See Example 6. Multiply or...Ch. 5.2 - Find each unit price. See Example 6. Multiply or...Ch. 5.2 - Find each unit price. See Example 6. Multiply or...Ch. 5.2 - Prob. 55ECh. 5.2 - Prob. 56ECh. 5.2 - Prob. 57ECh. 5.2 - Prob. 58ECh. 5.2 - Prob. 59ECh. 5.2 - Prob. 60ECh. 5.2 - Prob. 61ECh. 5.2 - Prob. 62ECh. 5.2 - Prob. 63ECh. 5.2 - Find each unit price. See Example 6. In your own...Ch. 5.2 - Prob. 65ECh. 5.2 - Find each unit price. See Example 6. Find an item...Ch. 5.3 - Prob. 1PCh. 5.3 - Prob. 2PCh. 5.3 - Is a true proportion? Ch. 5.3 - Prob. 4PCh. 5.3 - Prob. 5PCh. 5.3 - Prob. 6PCh. 5.3 - Prob. 7PCh. 5.3 - Prob. 8PCh. 5.3 - Use the words and phrases below to fill in each...Ch. 5.3 - Use the words and phrases below to fill in each...Ch. 5.3 - Use the words and phrases below to fill in each...Ch. 5.3 - Use the words and phrases below to fill in each...Ch. 5.3 - Prob. 5VRVCh. 5.3 - Prob. 6VRVCh. 5.3 - Prob. 7VRVCh. 5.3 - Prob. 8VRVCh. 5.3 - Prob. 9VRVCh. 5.3 - Prob. 10VRVCh. 5.3 - Prob. 1ECh. 5.3 - Prob. 2ECh. 5.3 - Prob. 3ECh. 5.3 - Write each sentence as a proportion. See Example...Ch. 5.3 - Write each sentence as a proportion. See Example...Ch. 5.3 - Write each sentence as a proportion. See Example...Ch. 5.3 - Prob. 7ECh. 5.3 - Prob. 8ECh. 5.3 - Prob. 9ECh. 5.3 - Prob. 10ECh. 5.3 - Prob. 11ECh. 5.3 - Prob. 12ECh. 5.3 - Prob. 13ECh. 5.3 - Prob. 14ECh. 5.3 - Prob. 15ECh. 5.3 - Determine whether each proportion is a true...Ch. 5.3 - Determine whether each proportion is a true...Ch. 5.3 - Determine whether each proportion is a true...Ch. 5.3 - Determine whether each proportion is a true...Ch. 5.3 - Prob. 20ECh. 5.3 - Prob. 21ECh. 5.3 - Determine whether each proportion is a true...Ch. 5.3 - Prob. 23ECh. 5.3 - Prob. 24ECh. 5.3 - Prob. 25ECh. 5.3 - Prob. 26ECh. 5.3 - Determine whether each proportion is a true...Ch. 5.3 - Determine whether each proportion is a true...Ch. 5.3 - Write each sentence as a proportion. Then...Ch. 5.3 - Prob. 30ECh. 5.3 - Prob. 31ECh. 5.3 - Prob. 32ECh. 5.3 - Prob. 33ECh. 5.3 - Prob. 34ECh. 5.3 - Prob. 35ECh. 5.3 - Prob. 36ECh. 5.3 - Prob. 37ECh. 5.3 - For each proportion, find the unknown number n. Ch. 5.3 - For each proportion, find the unknown number n. Ch. 5.3 - For each proportion, find the unknown number n. Ch. 5.3 - Prob. 41ECh. 5.3 - Prob. 42ECh. 5.3 - Prob. 43ECh. 5.3 - Prob. 44ECh. 5.3 - Prob. 45ECh. 5.3 - Prob. 46ECh. 5.3 - For each proportion, find the unknown number n. Ch. 5.3 - For each proportion, find the unknown number n. Ch. 5.3 - For each proportion, find the unknown number n. Ch. 5.3 - Prob. 50ECh. 5.3 - Prob. 51ECh. 5.3 - Prob. 52ECh. 5.3 - Prob. 53ECh. 5.3 - Prob. 54ECh. 5.3 - Prob. 55ECh. 5.3 - For each proportion, find the unknown number n. Ch. 5.3 - For each proportion, find the unknown number n. Ch. 5.3 - For each proportion, find the unknown number n. Ch. 5.3 - For each proportion, find the unknown number n. Ch. 5.3 - Prob. 60ECh. 5.3 - Prob. 61ECh. 5.3 - Insert < or > to form a true statement. See...Ch. 5.3 - Insert < or > to form a true statement. See...Ch. 5.3 - Insert < or > to form a true statement. See...Ch. 5.3 - Prob. 65ECh. 5.3 - Prob. 66ECh. 5.3 - Prob. 67ECh. 5.3 - Prob. 68ECh. 5.3 - Prob. 69ECh. 5.3 - Use the numbers in each proportion to write two...Ch. 5.3 - If the proportion is a true proportion, write two...Ch. 5.3 - Write a true proportion. Ch. 5.3 - Prob. 73ECh. 5.3 - Prob. 74ECh. 5.3 - Prob. 75ECh. 5.3 - Prob. 76ECh. 5.3 - Prob. 77ECh. 5.3 - Prob. 78ECh. 5.3 - Prob. 79ECh. 5.3 - Prob. 80ECh. 5.3 - Prob. 81ECh. 5.3 - For each proportion, find the unknown number n. Ch. 5.3 - For each proportion, find the unknown number n. Ch. 5.3 - For each proportion, find the unknown number n. Ch. 5.3 - Prob. 85ECh. 5.3 - Prob. 86ECh. 5.4 - Prob. 1PCh. 5.4 - Prob. 2PCh. 5.4 - Prob. 3PCh. 5.4 - An NBA basketball player averages 45 baskets for...Ch. 5.4 - Prob. 2ECh. 5.4 - It takes a word processor 30 minutes to word...Ch. 5.4 - It takes a word processor 30 minutes to word...Ch. 5.4 - Prob. 5ECh. 5.4 - Prob. 6ECh. 5.4 - Prob. 7ECh. 5.4 - Prob. 8ECh. 5.4 - Prob. 9ECh. 5.4 - Prob. 10ECh. 5.4 - Prob. 11ECh. 5.4 - Prob. 12ECh. 5.4 - Prob. 13ECh. 5.4 - Prob. 14ECh. 5.4 - Prob. 15ECh. 5.4 - Prob. 16ECh. 5.4 - Prob. 17ECh. 5.4 - Prob. 18ECh. 5.4 - Prob. 19ECh. 5.4 - Prob. 20ECh. 5.4 - Prob. 21ECh. 5.4 - Prob. 22ECh. 5.4 - Prob. 23ECh. 5.4 - Prob. 24ECh. 5.4 - Prob. 25ECh. 5.4 - Prob. 26ECh. 5.4 - Prob. 27ECh. 5.4 - Prob. 28ECh. 5.4 - Prob. 29ECh. 5.4 - Prob. 30ECh. 5.4 - Prob. 31ECh. 5.4 - Prob. 32ECh. 5.4 - A student would like to estimate the height of the...Ch. 5.4 - Prob. 35ECh. 5.4 - Prob. 36ECh. 5.4 - Prob. 37ECh. 5.4 - Prob. 38ECh. 5.4 - Prob. 39ECh. 5.4 - Prob. 40ECh. 5.4 - Prob. 41ECh. 5.4 - Prob. 42ECh. 5.4 - Prob. 43ECh. 5.4 - Prob. 44ECh. 5.4 - Prob. 45ECh. 5.4 - The gas/oil ratio for a certain tractor mower is...Ch. 5.4 - The adult daily dosage for a certain medicine is...Ch. 5.4 - Prob. 48ECh. 5.4 - Prob. 49ECh. 5.4 - Prob. 50ECh. 5.4 - Prob. 51ECh. 5.4 - Prob. 52ECh. 5.4 - Find the prime factorization of each number. See...Ch. 5.4 - Find the prime factorization of each number. See...Ch. 5.4 - Find the prime factorization of each number. See...Ch. 5.4 - Find the prime factorization of each number. See...Ch. 5.4 - Prob. 57ECh. 5.4 - Prob. 58ECh. 5.4 - Prob. 59ECh. 5.4 - Prob. 60ECh. 5.4 - Prob. 61ECh. 5.4 - Prob. 62ECh. 5.4 - Prob. 63ECh. 5.4 - A board such as the one pictured below will...Ch. 5 - Prob. 1IRCh. 5 - Write each ratio as a ratio of whole numbers using...Ch. 5 - Prob. 3IRCh. 5 - Prob. 4IRCh. 5 - Prob. 5IRCh. 5 - Prob. 6IRCh. 5 - Prob. 7IRCh. 5 - Prob. 8IRCh. 5 - Prob. 9IRCh. 5 - Write each ratio as a ratio of whole numbers using...Ch. 5 - Prob. 11IRCh. 5 - Prob. 12IRCh. 5 - Prob. 13IRCh. 5 - Prob. 14IRCh. 5 - Prob. 15IRCh. 5 - Prob. 16IRCh. 5 - Prob. 17IRCh. 5 - Prob. 18IRCh. 5 - Prob. 19IRCh. 5 - Prob. 20IRCh. 5 - Write each rate as a fraction in simplest...Ch. 5 - Write each rate as a fraction in simplest...Ch. 5 - Write each rate as a fraction in simplest form. 63...Ch. 5 - Write each rate as a fraction in simplest form. 85...Ch. 5 - Prob. 25IRCh. 5 - Prob. 26IRCh. 5 - Prob. 27IRCh. 5 - Prob. 28IRCh. 5 - Prob. 29IRCh. 5 - Write each unit price, rounded to the nearest...Ch. 5 - Write each unit price, rounded to the nearest...Ch. 5 - Write each unit price, rounded to the nearest...Ch. 5 - Prob. 1VCCh. 5 - Prob. 2VCCh. 5 - Prob. 3VCCh. 5 - Prob. 4VCCh. 5 - Prob. 5VCCh. 5 - Prob. 6VCCh. 5 - Prob. 7VCCh. 5 - Prob. 8VCCh. 5 - (5.1) Write each ratio as a fraction in simplest...Ch. 5 - (5.1) Write each ratio as a fraction in simplest...Ch. 5 - (5.1) Write each ratio as a fraction in simplest...Ch. 5 - Prob. 4RECh. 5 - Prob. 5RECh. 5 - Prob. 6RECh. 5 - Prob. 7RECh. 5 - Prob. 8RECh. 5 - Prob. 9RECh. 5 - Prob. 10RECh. 5 - Write each rate as a fraction in simplest form. 8...Ch. 5 - Write each rate as a fraction in simplest form. 6...Ch. 5 - Write each rate as a fraction in simplest form. 15...Ch. 5 - Prob. 14RECh. 5 - Prob. 15RECh. 5 - Prob. 16RECh. 5 - Prob. 17RECh. 5 - Prob. 18RECh. 5 - Prob. 19RECh. 5 - Prob. 20RECh. 5 - Prob. 21RECh. 5 - Find each unit price and decide which is the...Ch. 5 - Find each unit price and decide which is the...Ch. 5 - Find each unit price and decide which is the...Ch. 5 - Prob. 25RECh. 5 - Prob. 26RECh. 5 - Prob. 27RECh. 5 - Prob. 28RECh. 5 - Prob. 29RECh. 5 - Prob. 30RECh. 5 - Determine whether each proportion is true. Ch. 5 - Determine whether each proportion is true. Ch. 5 - Find the unknown number n in each proportion. Ch. 5 - Prob. 34RECh. 5 - Prob. 35RECh. 5 - Prob. 36RECh. 5 - Prob. 37RECh. 5 - Prob. 38RECh. 5 - Prob. 39RECh. 5 - Find the unknown number n in each proportion. Ch. 5 - Find the unknown number n in each proportion. Ch. 5 - Find the unknown number n in each proportion. Ch. 5 - Prob. 43RECh. 5 - Prob. 44RECh. 5 - Prob. 45RECh. 5 - Prob. 46RECh. 5 - Prob. 47RECh. 5 - One bag of pesticide covers 4000 square feet of...Ch. 5 - An owner of a Ford Escort can drive 420 miles on...Ch. 5 - Prob. 50RECh. 5 - Prob. 51RECh. 5 - Prob. 52RECh. 5 - Prob. 53RECh. 5 - Prob. 54RECh. 5 - Prob. 55RECh. 5 - Prob. 56RECh. 5 - Write each ratio as a fraction in simplest...Ch. 5 - Write each ratio as a fraction in simplest...Ch. 5 - Write each ratio as a fraction in simplest form. 3...Ch. 5 - Prob. 60RECh. 5 - Prob. 61RECh. 5 - Prob. 62RECh. 5 - Prob. 63RECh. 5 - Prob. 64RECh. 5 - Prob. 65RECh. 5 - Prob. 66RECh. 5 - Prob. 67RECh. 5 - Find each unit price and decide which is the...Ch. 5 - Write each sentence as a proportion. 2 cups of...Ch. 5 - Write each sentence as a proportion. 5 nickels is...Ch. 5 - Prob. 71RECh. 5 - Prob. 72RECh. 5 - Prob. 73RECh. 5 - Prob. 74RECh. 5 - Prob. 75RECh. 5 - Prob. 76RECh. 5 - Prob. 77RECh. 5 - Prob. 78RECh. 5 - An investment of $1200 yields $152 each year. At...Ch. 5 - An investment of $1200 yields $152 each year. At...Ch. 5 - Prob. 1TCh. 5 - Write each ratio or rate as a fraction in simplest...Ch. 5 - Write each ratio or rate as a fraction in simplest...Ch. 5 - Prob. 4TCh. 5 - Prob. 5TCh. 5 - Prob. 6TCh. 5 - Prob. 7TCh. 5 - Prob. 8TCh. 5 - Prob. 9TCh. 5 - Prob. 10TCh. 5 - Prob. 11TCh. 5 - Prob. 12TCh. 5 - Prob. 13TCh. 5 - Prob. 14TCh. 5 - Prob. 15TCh. 5 - Prob. 16TCh. 5 - Prob. 17TCh. 5 - Prob. 18TCh. 5 - Prob. 19TCh. 5 - Prob. 20TCh. 5 - Prob. 21TCh. 5 - Prob. 22TCh. 5 - Prob. 23TCh. 5 - Prob. 24TCh. 5 - Prob. 25TCh. 5 - Prob. 26TCh. 5 - Prob. 1CRCh. 5 - Prob. 2CRCh. 5 - Prob. 3CRCh. 5 - Prob. 4CRCh. 5 - Prob. 5CRCh. 5 - Prob. 6CRCh. 5 - Prob. 7CRCh. 5 - Prob. 8CRCh. 5 - Prob. 9CRCh. 5 - Prob. 10CRCh. 5 - Prob. 11CRCh. 5 - Prob. 12CRCh. 5 - Prob. 13CRCh. 5 - Prob. 14CRCh. 5 - Prob. 15CRCh. 5 - Prob. 16CRCh. 5 - Prob. 17CRCh. 5 - Prob. 18CRCh. 5 - Prob. 19CRCh. 5 - Prob. 20CRCh. 5 - Prob. 21CRCh. 5 - Prob. 22CRCh. 5 - Prob. 23CRCh. 5 - Prob. 24CRCh. 5 - Subtract: Ch. 5 - Subtract: Ch. 5 - Prob. 27CRCh. 5 - Prob. 28CRCh. 5 - Prob. 29CRCh. 5 - Prob. 30CRCh. 5 - Prob. 31CRCh. 5 - Prob. 32CRCh. 5 - Prob. 33CRCh. 5 - Write “seventy-five thousandths” in standard...Ch. 5 - Round 736.2359 to the nearest tenth. Ch. 5 - Round 736.2359 to the nearest thousandth. Ch. 5 - Prob. 37CRCh. 5 - Prob. 38CRCh. 5 - Prob. 39CRCh. 5 - Prob. 40CRCh. 5 - Prob. 41CRCh. 5 - Prob. 42CRCh. 5 - Prob. 43CRCh. 5 - Find the unknown number n. Ch. 5 - Write the numbers in order from smallest to...Ch. 5 - Write the rate as a unit rate. 700 meters in 5...Ch. 5 - Prob. 47CRCh. 5 - Prob. 48CRCh. 5 - Prob. 49CRCh. 5 - Prob. 50CR
Knowledge Booster
Background pattern image
Math
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, subject and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Discrete Mathematics and Its Applications ( 8th I...
Math
ISBN:9781259676512
Author:Kenneth H Rosen
Publisher:McGraw-Hill Education
Text book image
Mathematics for Elementary Teachers with Activiti...
Math
ISBN:9780134392790
Author:Beckmann, Sybilla
Publisher:PEARSON
Text book image
Calculus Volume 1
Math
ISBN:9781938168024
Author:Strang, Gilbert
Publisher:OpenStax College
Text book image
Thinking Mathematically (7th Edition)
Math
ISBN:9780134683713
Author:Robert F. Blitzer
Publisher:PEARSON
Text book image
Discrete Mathematics With Applications
Math
ISBN:9781337694193
Author:EPP, Susanna S.
Publisher:Cengage Learning,
Text book image
Pathways To Math Literacy (looseleaf)
Math
ISBN:9781259985607
Author:David Sobecki Professor, Brian A. Mercer
Publisher:McGraw-Hill Education
What is a Linear Equation in One Variable?; Author: Don't Memorise;https://www.youtube.com/watch?v=lDOYdBgtnjY;License: Standard YouTube License, CC-BY
Linear Equation | Solving Linear Equations | What is Linear Equation in one variable ?; Author: Najam Academy;https://www.youtube.com/watch?v=tHm3X_Ta_iE;License: Standard YouTube License, CC-BY