Algebra and Trigonometry: Structure and Method, Book 2

2000th Edition

ISBN: 9780395977255

Author: MCDOUGAL LITTEL

Publisher: McDougal Littell

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Question

Chapter 1.8, Problem 27WE

To determine

To calculate:

The equation to describe the given situation

Expert Solution & Answer

Answer to Problem 27WE

The equation describing the given situation is 7x+9(20−x)=7.89(20) .

Explanation of Solution

Given information:

x : The weight of cashew

Since, the total weight of the mixture is x the weight of almonds is 20−x .

The cost of cashew: $7/kg

The almond: $9/kg

Calculation:

Algebra and Trigonometry: Structure and Method, Book 2, Chapter 1.8, Problem 27WE

Let, for x Kilogram of cashews, the cost will be 7x . For (20−x) kilograms of almonds, the cost will be 9(20−x) . Since the mixture weighs $7.80/kg , the cost of 20 kg of mixture will be $7.80(20) .

The total cost of mixture is same to sum of costs of x kilograms of cashews and (20−x) kilograms of almonds.

7x+9(20−x)=7.89(20)

The equation describing the situation is 7x+9(20−x)=7.89(20) .

Chapter 1.8, Problem 26WE

Chapter 1.8, Problem 28WE

Chapter 1 Solutions

Algebra and Trigonometry: Structure and Method, Book 2

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The equation to describe the given situation

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To calculate: The equation to describe the given situation

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The equation to describe the given situation