Mathematics for Machine Technology
Mathematics for Machine Technology
7th Edition
ISBN: 9781133281450
Author: John C. Peterson, Robert D. Smith
Publisher: Cengage Learning
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Concept explainers

Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
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Textbook Question
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Chapter 37, Problem 10A

Express each of the following problems as an algebraic expression.

Subtract 21 from b.

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Chapter 37 Solutions

Mathematics for Machine Technology

Ch. 37 - Use the Table of BlockThicknesses of a Customary...Ch. 37 - Use a digital micrometer to measure the length and...Ch. 37 - Prob. 3ACh. 37 - Use an electronic vernier caliper to measure the...Ch. 37 - Prob. 5ACh. 37 - 43 is 62% of what number? Round the answer to 2...Ch. 37 - Express each of the following problems as an...Ch. 37 - Express each of the following problems as an...Ch. 37 - Express each of the following problems as an...Ch. 37 - Express each of the following problems as an...
Ch. 37 - Express each of the following problems as an...Ch. 37 - Express each of the following problems as an...Ch. 37 - Express each of the following problems as an...Ch. 37 - Prob. 14ACh. 37 - Prob. 15ACh. 37 - Prob. 16ACh. 37 - Stock is removed from a block in two operations....Ch. 37 - Prob. 18ACh. 37 - Substitute the given numbers for letters and find...Ch. 37 - Prob. 20ACh. 37 - Prob. 21ACh. 37 - Prob. 22ACh. 37 - Prob. 23ACh. 37 - Prob. 24ACh. 37 - Prob. 25ACh. 37 - Prob. 26ACh. 37 - Prob. 27ACh. 37 - Prob. 28ACh. 37 - Prob. 29ACh. 37 - Prob. 30ACh. 37 - Prob. 31ACh. 37 - Prob. 32ACh. 37 - Prob. 33ACh. 37 - Prob. 34A
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