How many 4 letter arrangements can be made by using different letters from the word hexagon
1 answer:
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Answer:
Therefore
Step-by-step explanation:
To Find:
Value of expression
75 ÷ 5 - [( 9 - 7 ) × 3 ] × 2
Solution:
PEDMAS rule
It explains the order of operations to solve an expression.
According to Pedmas rule, if an expression contains brackets ((), {}, []) we have to first solve or simplify the bracket followed by of (powers and roots etc.),
then division, multiplication, addition and subtraction from left to right.
P - parenthesis
E- exponent
D/M - Div or Multiply which ever comes first
A/S - Add or Sub which ever comes first.
So first we will solve the Parenthesis we get
Step 1. Parenthesis operation
75 ÷ 5 - [( 2 ) × 3 ] × 2
Step 2. Parenthesis operation
Step 3. Division
Step 4. Multiplication
Step 5. Subtraction
3
Therefore
<h3><u>Answer:</u></h3>
- 11. 6 + n = 20
- 12. n - 7 = 20
- 13. n + n + 1 = 31
- 14. 2n + 2 = 13
- 15. n - 1 = 18
- 16. n² + 4 = 2x
- 17. 2n = 1/2
- 18. n²/2 = 18
- 19. n/2 + 90/2 = 70
- 20. 2 + n = 12
Hoped this helped.