Log In Start studying!

Select your language

Suggested languages for you:

Americas

English (US)

Europe

Q1.

Expert-verified

Pre-algebra

Found in: Page 17

Book edition Common Core Edition

Author(s) Ron Larson, Laurie Boswell, Timothy D. Kanold, Lee Stiff

Pages 183 pages

ISBN 9780547587776

Answers without the blur.

Just sign up for free and you're in.

Register for Free I’ll do it later

Short Answer

Evaluate the expression.
$28 - 63 \div 7$

The value of the expression is 19.

See the step by step solution

Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step-1 – Order of operations

To evaluate any expression involving more than one operation, follow the below order of operations:

First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
Evaluate the exponents.
Perform Multiplication and division from left to right.
Perform addition and subtraction from left to right.

Step-2 – Divide 63 by 7

In the given expression, there is no grouping symbols and exponents in it. So, to evaluate the expression first divide 63 by 7 to get 9

$\begin{array}{l} 28 - 63 \div 7 \\ = 28 - 9 \end{array}$

Step-3 – Subtract the resulting numbers

Now to simplify further, subtract the numbers to get

$\begin{array}{l} 28 - 63 \div 7 \\ = 28 - 9 \\ = 19 \end{array}$

Thus, the value of the expression is .19.

Most popular questions for Math Textbooks

Extended Problem Solving In football, each field goal (FG) is worth 3 points. Each kicked point after touchdown (PAT) is worth 1 point. The table shows career totals for three leading kickers.

a. Let p be the number of points after touchdown that a kicker scored, and let f be the number of field goals. Write a variable expression for the total number of points.

b. Evaluate Find the total number of points for each kicker.

c. Compare List the players in order from least total number of points to greatest.

Multiple Choice Evaluate the expression $x - y when x = 12.8 and y = 4$ .

$\begin{array}{l} F . 3.2 \\ G . 8.8 \\ H . 12.4 \\ I . 13.2 \end{array}$

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

localid="1648024441706" $\frac{c}{a}$

Evaluate the experssion when $x = 6 and y = 12$

localid="1647946693704" $x y$

Identify the variable in the expression $21 + d$ .

Want to see more solutions like these?

Sign up for free to discover our expert answers

Get Started - It’s free

Recommended explanations on Math Textbooks

94% of StudySmarter users get better grades.

Sign up for free