Some More Applications
Chapter Name : Linear Equations In One Variable |
Sub Topic Code : 104_08_02_05_01 |
Topic Name : Some More Applications |
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Sub Topic Name : Some More Applications |
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Introduction
Such questions result in equations where the variable is on both the sides. In such equations, the variable can be brought on one side and its value determined by simple arithmetic operation.
Pre-Requisites:
Basic knowledge about arithmetic operations and linear equations
Activity:
The distance is equal. One destination can be defined by a linear expression and the other by another expression. By equating these two expressions, we get the unit distance.
Real Life Question:
The total no. of mangoes in 2 yards is the same. The number of mangoes in each tree is 20 in one yard and 30 in another and the number trees in first yard is twice the other. How many trees are there in total?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Linear Equation | The power of the variable should be 1 |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Map | On a map, set destinations and a unit distance. For destinations at equal distances make different routes and equate them. |
Real life uses :
Conversion of units from one scale to other, exchange rates, telephone tarrif
Practical examples around us
| Examples | Explainations |
|---|---|
| Money Exchangers | USD= 55.4*INR (Changes everyday) |
What you learn in Theory:
An Intro on how to solve equations with linear expressions on either sides.
What you learn in Practice:
It is known by transposing the equation such that variables are brought to one side and the numbers to the other side. Such situations are encountered very much in everyday life as well as in advanced maths, geometry, applied science etc.