Translating Word Problems into Equations
The lesson teaches how to translate word sentences into mathematical equations. It covers the use of variables to represent numbers and how to express word problems as algebraic expressions. Students will learn to solve simple equations and check their answers.
- 19:25 “We've come to the end of today's class. Thank you so much for watching. My name is Dorkas Aoye, till next time.”
- 04:45 “Total costs, for example, maybe cost of pens and rulers. The total cost would be expressed in P plus R. Every other triangle, length times this breath, as L times B parameter of a rectangle, 2L plus 2B. That is how we ex...”
- 11:09 “So we say Q. And rice adds double the price of maize. That is two times Q. If she sold 50 cups of maize and 45 cups of rice, what was her income? So 50 cups of Q, that is 50 of Q, 50 Q plus-- this is 2Q plus 2Q times 45....”
Revenue Types
This lesson defines revenue and explains its three main types: total revenue, average revenue, and marginal revenue. It covers how to calculate each type and their relationships to production and sales.
- 08:55 “so it's going to be P minus 30, over changing quantity, under that same P, what is it going to see, 6, okay, so you say, 6, minus 5, 6, minus 5, so your 1 equals to words, equals to P minus 30, over 6 minus 5 equals word...”
- 11:28 “which is what, change in CR over change in quantity, so what do I do, I would say, this minus this, that's 24, minus 28, it's over, what's the quantity, it's minus 7, it's minus 7, okay, so what do I do, transform minus...”
- 09:47 “let me do it well for you, so you see clearly, take a look again, take a look, P minus 30 times 1, now give us words, now give us P minus 30, okay, let's give us P minus 30, P minus 30, okay, then this times this, we giv...”
Measures of Central Tendency
This lesson covers the measures of central tendency, including mean, median, and mode. Students will learn how to calculate these measures using given data sets. The lesson also explains how to handle data with and without frequency.
- 04:01 “three occured two times. So we can have, our Mood can be, can be words two and three. So we can have more than two Mood in a set of data. [BLANK_AUDIO] Now let's look at example number one. [BLANK_AUDIO] Calculate the ma...”
- 23:20 “value. And that is give us 2, and that is give us 2, that is give us 2. So frequency is 2, so therefore our Q3 and our C is the class, is the class width, which is also 2. How do we find the class width? That the differe...”
- 10:24 “So therefore, summation f x equals 84, y summation f equals 30. So we have mean x bar to be 84, all over 30. And that will give us 2.8. When we are going to the nearest one number, we have 3. So therefore, what mean x ba...”