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kirill [66]
3 years ago
7

How do you solve 9n+4=5n+18 and what is the answer

Mathematics
2 answers:
Marysya12 [62]3 years ago
8 0
9n+4=5n+18\\9n-5n=18-4\\4n=14\ /:4\\n=3.5\\\\Ans.\ n=3.5
kenny6666 [7]3 years ago
4 0
9n+4=5n+18\ \ \ \ |subtract\ 4\ from\ both\ sides\\\\9n=5n+14\ \ \ \ \ |subtract\ 5n\ from\ both\ sides\\\\4n=14\ \ \ \ \ \ |divide\ both\ sides\ by\ 4\\\\n=\frac{14}{4}\\\\n=\frac{7}{2}\\\\\boxed{n=3\frac{1}{2}}

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Ivahew [28]

Answer:

12

Step-by-step explanation:

using pythagoras theorem

here 15 is hypotenuse since it is opposite 0f 90 degree

9 and x are the other smaller sides of a triangle

according to pythagoras thorem the sum of square of two smaller sides of a triangle is equal to the square of hypotenuse. So,

9^2 + x^2 = 15^2

81 + x^2 = 225

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x^2 = 144

x = \sqrt{144

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5 0
3 years ago
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Step-by-step explanation:

5 0
3 years ago
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MariettaO [177]
8 x 2 + 6x + 5=0
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5 0
3 years ago
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6 0
2 years ago
Please answer questions 1 and/or 2, thnx
bixtya [17]
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hope this helps
7 0
3 years ago
Read 2 more answers
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