RainyLunatic
RainyLunatic RainyLunatic
  • 26-05-2022
  • Mathematics
contestada

7. In which step does a mistake first occur? 8÷2+ (3 x 3-2) Step 1: 8÷2 + (3 x 1) Step 2: 8÷2+3 Step 3: 4+3 Step 4: 7​

Respuesta :

Apple5164 Apple5164
  • 27-05-2022

Answer: Step 1

A mistake first happens in Step #1. PEMDAS is not followed correctly.

(PEMDAS = parentheses, exponents, multiplication, division, addition, subtraction)

When solving 8÷2+(3x3-2), you first move left to write and solve the problems working through the correct order of operations.  

Correct Steps:

1)  8÷2 + (3x3-2)

2) 4 + (9-2)

3) 4 + 7

4) 4+7 = 11

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