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Chapter 1: Q28. (page 9)

Find the value of each expression

28.134-72

Short Answer

Expert verified

Value of134-72 is -15

Step by step solution

01

- Order for simplification by 

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.
02

- Simplify expression inside grouping symbol

To evaluate the value of the given expression, first simplify the expression inside the parenthesis as shown below

134鈭�72=134鈭�49=13鈭�45

03

- Divide by 3

Now, to simplify further divide the numbers to get

13鈭�45=鈭�453=鈭�15

Thus, value of 134鈭�72 is -15

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Most popular questions from this chapter

Write expressions having values from one to ten using exactly four 4s. You may use any combination of the operation symbols +,-,脳,梅,and/or grouping symbols, but no other numbers are allowed. An example of such an expression with a value of zero is 4+4-4+4

Simplify each expression

14. 9p-2n+4p+2n

Use the following information.

Simple interest is calculated using the formula I=prt, wherep represents the principal in dollars,r represents the annual interest rate, andt represents the time in years. Find the simple interestI given each of the following values.

13. p=$1800,r=6%,t=4years

Name the property illustrated by each equation.

23+53=2+53

BAND BOOSTERS

Use the information below and in the table.

Ashley is selling chocolate bars for$1.50 each to raise money for the band.

17. Write an expression to represent the total amount of money Ashley raised during this week.
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