Chapter 4.3, Problem 55E

Finite Mathematics and Applied Cal...

7th Edition
Stefan Waner + 1 other
ISBN: 9781337274203

Chapter
Section

Finite Mathematics and Applied Cal...

7th Edition
Stefan Waner + 1 other
ISBN: 9781337274203
Textbook Problem

In Exercises 51-56, x, y and z represent the weights of the three ingredients X, Y, and Z in a gasoline blend. Say which of the following is represented by a linear equation in x, y, and z, and give a form of the equation when it is.There is at least 30% ingredient Y by weight.

To determine

If the condition forms a linear equation in x,y,z. Also, give the form of the linear equation if possible and here x,y,z represent the weights of three ingredients X, Y and Z in a gasoline blend. And the blend contains at least 30% of ingredient Y by weight.

Explanation

Since the x,y,z represent the weights of three ingredients X, Y and Z in a gasoline blend.

It is mentioned that the blend contains at least 30% of ingredient Y by weight.

Therefore, it can be rephrased as the amount of Y is more than or equal to 30% of the total weight

yā„0

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