# Algebra in the Real World and Everyday Life. Essay

Hal Hagood u07a2 Table of Contents

Page Number

Table of Contents …………………………………………………………………… 2

Introduction ………………………………………………………………………… 3

Ways That Algebra Affects Business or Science ………………………………….. 5

How Algebraic Concepts Can Solve Everyday Problems in Life …………………. 6

Ways Algebra Can Solve Everyday Problems in Business or Science ……………. 9

A Surprising Finding About How Algebra Affects Personal Life, Business, and Science 10

References ………………………………………………………………………….. 14

Introduction

Algebra, some of us fear it while some of us embrace it, algebra is not “arithmetic with letters” it is better described as a

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Back in the days when you actually had to pay for long distance service shopping for the best long distance plan was pretty important. For example a telephone long distance company would cost me $3.00 each month for a $0.03 per minute long distance rate. To calculate the cost where "x" is the number of minutes and "y" is the cost of the long distance usage I can use the linear equation y = 0.03x + 3. So for 60 minutes … y = 0.03x + 3 y = 0.03(60) + 3 y= 0.03 x 60 + 3 y= 4.8

Another one of my favorite examples has to do with cooking a chicken and since I love to cook this was very timely. “The time, in minutes, taken to cook a chicken, C, is linearly related to the weight, in kilograms, of the chicken, k. It takes 40 minutes to cook a 1.4kg chicken and 50 minutes to cook a 1.8kg chicken.

Find the linear equation relating cooking time, C, with the weight of the chicken, k, for a 1.7kg Chicken. This is the same as a line with ordered pairs, (k,C) and two points are given; find the equation for the line. You are looking for C=mk+b, much like