Chapter 1: Q42. (page 7)

Evaluate the experssion when $a = 2.5, b = 15, and c = 3.5$
$b - c$

Short Answer

Expert verified

The value of the expression is $11.5$ .

Step by step solution

Step-1 – Apply the 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 for addition and subtraction of decimals

To add or subtract two decimal numbers, write the numbers vertical with decimal point aligned vertically.

For example: to add the numbers 2.3 and 4.62, write these numbers vertically and add as shown below

$\begin{array}{l} 2.3 \\ \underline{+ 4.62} \\ 6.92 \end{array}$

Step-3 – Evaluate the expression

To evaluate the expression $b - c$ , substitute the values of b as 15 and value of c as 3.5 and subtract the numbers as shown below,

localid="1648801931596" $\begin{array}{l} 15.0 \\ \underline{- 3.5} \\ 11.5 \end{array}$

Thus, the value of the expression is $11.5$ .

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.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Evaluate the experssion when $a = 2.5, b = 15, and c = 3.5$
$b - c$

Short Answer

Step by step solution

Step-1 – Apply the concept of addition and subtraction

Step-2 – Apply the concept for addition and subtraction of decimals

Step-3 – Evaluate the expression

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Decision Maths

Probability and Statistics

Mechanics Maths

Discrete Mathematics

Logic and Functions

Geometry

Study anywhere. Anytime. Across all devices.

Evaluate the experssion when a=2.5, b=15,andc=3.5b-c

Short Answer

Step by step solution

Step-1 – Apply the concept of addition and subtraction

Step-2 – Apply the concept for addition and subtraction of decimals

Step-3 – Evaluate the expression

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Decision Maths

Probability and Statistics

Mechanics Maths

Discrete Mathematics

Logic and Functions

Geometry

Study anywhere. Anytime. Across all devices.

Evaluate the experssion when $a = 2.5, b = 15, and c = 3.5$
$b - c$