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artcher [175]
2 years ago
11

4/n+9=2/7 adsdwddddfdsfefsef

Mathematics
2 answers:
Jet001 [13]2 years ago
6 0

Answer:

<h2>n = 5</h2><h2 />

Step-by-step explanation:

<u>  4    </u>  = <u> 2 </u>

n + 9      7

cross multiply:

7 (4) = 2n + 2 (9)

simplify:

28 = 2n + 18

28 - 18 = 2n

simplify:

n =<u> 10 </u>

      2

n = 5

beks73 [17]2 years ago
4 0

Answer: n= −28 /61

Step-by-step explanation:

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What are the rules to remember when dividing fractions?
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Using the quadratic formula, what is the value of x for x^2-4+5=0​
PSYCHO15rus [73]

value of x is: x= i and x= -i

Step-by-step explanation:

We need to find the value of x from x^2-4+5=0​ using quadratic formula.

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The quadratic formula is:

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\

Where a = 1, b=0,c=1

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So, value of x is: x= i and x= -i

Keywords: Quadratic formula

Learn more about quadratic formula at:

  • brainly.com/question/7361044
  • brainly.com/question/10666510
  • brainly.com/question/1332667

#learnwithBrainly

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