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Chapter 1: Q38. (page 9)

Evaluate each expression if w=6,x=0.4,y=12,and z=-3

w+x+z

Short Answer

Expert verified

Expressionw+x+z results into3.4

Step by step solution

01

- Order for simplification 

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

- Substitute given values

Substitute 0.4for x, 6 for wand -3 forz into given expression

w+x+z=6+0.4+-3

03

- Simplify 6+0.4+-3

Now, to simplify add the numbers to get

6+0.4+鈭�3=6.4+鈭�3=3.4

Thus, w+x+z=3.4

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