Algebra 1

Carter, Cuevas, Day, Holiday, Luchin

$Math Studyset 91影视 Explanations$ Math

Student Edition 路 801 pages

ISBN: 9780078884801

Chapter 1: Q6. (page 44)

Find each sum or difference.
$31 鈭� 42.9$

Short Answer

Expert verified

The value of the expression is 鈥�11.9.

Step by step solution

Step 1. Concept of addition and subtraction.

Two numbers with similar signs get added and the resulting number carries the similar sign.

Two numbers with opposite signs get subtracted and the resulting number carries the sign of the larger number.

Step 2. Apply the concept of like and unlike signs.

If there is a sign like $+ (+)$ or $鈭� (鈭�)$ then the resulting sign will be positive and if there is an unlike sign $+ (鈭�)$ or $鈭� (+)$ then the resulting will be negative.

$= 鈭� 71 + 10$

Step 3. Evaluate the difference.

$\begin{array}{l} = 鈭� 42.9 + 31 \\ = 鈭� 11.9 \end{array}$

Therefore, the sum is 鈥�11.9.

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91影视

Find each sum or difference.
$31 鈭� 42.9$

Short Answer

Step by step solution

Step 1. Concept of addition and subtraction.

Step 2. Apply the concept of like and unlike signs.

Step 3. Evaluate the difference.

One App. One Place for Learning.

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91影视

Find each sum or difference.31鈭�42.9

Short Answer

Step by step solution

Step 1. Concept of addition and subtraction.

Step 2. Apply the concept of like and unlike signs.

Step 3. Evaluate the difference.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Theoretical and Mathematical Physics

Statistics

Discrete Mathematics

Mechanics Maths

Pure Maths

Calculus

Study anywhere. Anytime. Across all devices.

Find each sum or difference.
$31 鈭� 42.9$