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Liula [17]
4 years ago
15

Find X in the ratio 1:3 = 9:x​

Mathematics
2 answers:
goldenfox [79]4 years ago
8 0

Answer:

27

Step-by-step explanation:

9*3=27

since it's always 3 times the amount of the left side we would just multiply 9 by 3

andriy [413]4 years ago
5 0

Answer:

76.2 cm

Step-by-step explanation:

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Sum of 23 and y please help
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I think it’s -5

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You(or your parents) earn$53,698.00/yr and you have deductions of FICA(7.65%), federal tax withholding(11.5%), and state tax wit
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Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

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4 0
3 years ago
Solve the quadratic equation by taking square roots.
Stolb23 [73]

Answer:

see explanation

Step-by-step explanation:

1

Given

2x² - 16 = 0 ( add 16 to both sides )

2x² = 16 ( divide both sides by 2 )

x² = 8 ( take the square root of both sides )

x = ± \sqrt{8} = ± 2\sqrt{2}

------------------------------------

2

Given

- 5x² + 9 = 0 ( subtract 9 from both sides )

- 5x² = - 9 ( divide both sides by - 5 )

x² = \frac{9}{5} ( take the square root of both sides )

x = ± \sqrt{\frac{9}{5} } = ± \frac{3}{\sqrt{5} }

-----------------------------------------

3

Given

6x² - 15 = 27 ( add 15 to both sides )

6x² = 42 ( divide both sides by 6 )

x² = 7 ( take the square root of both sides )

x = ± \sqrt{7}

4 0
3 years ago
Solve the system of equations.<br> 5y - 4x = -7<br> 2y + 4x = 14<br><br><br> X =<br> Y =
nadezda [96]

Answer:

5y + 2y - 4x + 4x = -7 +14

7y = 7

y = 1

2(1) + 4x = 14

4x = 12

x = 3

Step-by-step explanation:

Using the process of elimination

Add both equations. The 4x will be eliminated since one is positive and one is negative. The equation is left with only the y variable and the constant.

When y is found, input it into the second equation to find x.

8 0
3 years ago
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