/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q38. Error Analysis Describe and corr... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 1: Q38. (page 7)

Error Analysis Describe and correct the error in writing a variable expression for the difference of a number and 31.

Short Answer

Expert verified

The variable expression for the difference of a number and 31 is p-31.

Step by step solution

01

Step-1 – Apply the concept of Variable

In any expression or equation, the variable is an unknown quantity. It may be any alphabet or any special symbol.

02

Step-2 – Example for the variable

In the expression 2x+3, the unknown quantity is x. So, the variable in this expression is x. 2 and 3 are constants values.

03

Step-3 – Identify the variable

Let the unknown number be p.

The given expression is for the difference of 31 and the unknown number p.

In order to write the variable expression for the given phrase, subtract 31 from the unknown number p.

So, the variable expression to represent the phrase is p-31.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Challenge: The point (a, b) is in Quadrant II of a coordinate plane. Describe the location of the point with the given coordinates.

(b,鈥�鈥�a)

Find the product or quotient)

鈥� 4 (鈥� 8)

Evaluate the expression.

9鈰�6+27梅3

Write the power in words and as a repeated multiplication. Then evaluate the power

(1.2)3

Challenge The plastic tips on the ends of a shoelace are called aglets. Suppose a sneaker factory produces p pairs of shoes each hour and is in operation for h hours each day. Write a variable expression for the number of single aglets the factory uses each day. Evaluate the expression when p=200andh=20. Explain what your answer means.
See all solutions

Recommended explanations on Math Textbooks

Mechanics Maths

Read Explanation

Geometry

Read Explanation

Applied Mathematics

Read Explanation

Discrete Mathematics

Read Explanation

Pure Maths

Read Explanation

Logic and Functions

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.