6th Edition

ISBN: 9780134434681

Author: Tom Pirnot

Publisher: PEARSON

Concept explainers

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 …

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experime…

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Textbook Question

Chapter 4.4, Problem 1E

Sharpening Your Skills.

In Exercises 1 – 4, assume that the time is measured in days.

Use the following PERT diagram to answer the following questions:

Chapter 4.4, Problem 1E, Sharpening Your Skills. In Exercises 1 4, assume that the time is measured in days. Use the

a. Find a critical path for task I.

b. Find a critical path for task E.

c. On what day will task H begin?

d. When will task I be completed?

e. What is the fewest number of days needed to complete this project?

f. Find a critical path for the vertex “End.”

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Chapter 4.3, Problem 34E

Chapter 4.4, Problem 2E

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Chapter 4 Solutions

Mathematics All Around (6th Edition)

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Solution Summary: The author explains the critical path for the task I in a PERT diagram.

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Chapter 4 Solutions