Algebra and Trigonometry: Structure and Method, Book 2

2000th Edition

ISBN: 9780395977255

Author: MCDOUGAL LITTEL

Publisher: McDougal Littell

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

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A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.

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Question

Chapter 1.8, Problem 24WE

To determine

To explain:

Variable for representing an unknown number and equation for describing the given situation.

Expert Solution & Answer

Answer to Problem 24WE

Equation for describing the given situation is 5x+10=50 .

Explanation of Solution

Explanations:

Consider the starting points 50 mi

Let, X= speed of Tom in mi/h .

Then the speed of the Tina is (x+4)mi/h .

Distance is calculated as,

=S×T

Where,

S= speed.

T= Time.

The distance traveled by Tom is x×212mi .

The distance traveled by Tina is (x+4)×212mi .

The sumof the distance traveled by Tom and Tina is x×212mi+(x+4)×212mi=5x+10 mi

Therefore, the equation describing the given situation is 5x+10=50 .

Chapter 1.8, Problem 23WE

Chapter 1.8, Problem 25WE

Chapter 1 Solutions

Algebra and Trigonometry: Structure and Method, Book 2

Ch. 1.1 - Prob. 1OE Ch. 1.1 - Prob. 2OE Ch. 1.1 - Prob. 3OE Ch. 1.1 - Prob. 4OE Ch. 1.1 - Prob. 5OE Ch. 1.1 - Prob. 6OE Ch. 1.1 - Prob. 7OE Ch. 1.1 - Prob. 8OE Ch. 1.1 - Prob. 9OE Ch. 1.1 - Prob. 10OE

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Variable for representing an unknown number and equation for describing the given situation.

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To explain: Variable for representing an unknown number and equation for describing the given situation.

Answer to Problem 24WE

Explanation of Solution

Chapter 1 Solutions

Additional Math Textbook Solutions

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Variable for representing an unknown number and equation for describing the given situation.