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Chapter 1: Q 140. (page 39)

In the following exercises, evaluate the following expressions.

2l+2wwhenl=18,w=14

Short Answer

Expert verified

The required value is 64.

Step by step solution

01

Step 1. Given information.

The given expression is:

2l+2w

We have to evaluate the given expression forl=18andw=14.


To evaluate an expression means to find the value of the expression when the variable is replaced by a given number.

02

Step 2. Replace l with 18 and w  with 14 in the given expression.

2l+2w=2路18+2路14

Follow the order of operations,

=36+28=64

The value of role="math" localid="1647168112680" 2l+2wwhenl=18,w=14is 64.

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