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Chapter 1: Q22. (page 9)

Find the value of each expression

2+85÷2-3

Short Answer

Expert verified

Value of2+85÷2-3 is 19

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

- Simplify expression inside grouping symbol

To evaluate the value of the given expression, first multiply then divide numbers from left to right as shown below

2+85÷2−3=2+40÷2−3=2+20−3

03

- Add 2 with 40 then subtract 3

Now, to simplify further add and subtract the numbers to get

2+20−3=22−3=19

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Most popular questions from this chapter

The amount of pollutants saved by riding a bicycle rather than driving a car is calculated by adding the organic gases, carbon monoxide, and nitrous oxides emitted. To find the pound of pollutants created by starting a typical car 10 times and driving it for 50 miles, find the value of expression 52.84×10+5.955×50454

The formula for the area of a circle with diameter d is A=πd22. Write an expression to represent the area of the circle.

Describe how will you evaluate the expressiona+bc+d÷e given values fora,b,c,d, and e

Identify the additive inverse and multiplicative inverse for each number

1.5

Evaluate each expression ifw=6,x=0.4,y=12, andz=-3

48.x-y2-2wz
See all solutions

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