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Setler [38]
3 years ago
8

What is the value of X in the equation 3X (-1) / 9Y equals 18 when Y equal 27

Mathematics
1 answer:
iren [92.7K]3 years ago
6 0

Answer:

The value of X in the equation 3X (-1) / 9Y equals 18 when Y equal 27 is 1458.33

Step-by-step explanation:

\frac{3X - 1}{9 Y} = 18 is a polinomial equation A

if the value of Y = 27

put this value of Y in the equation A

\frac{3 X -1}{9 \times 27} = 18

\frac{3 X -1}{243} = 18

243 will be taken to right hand side and as per rule will be multiplied by 18

3X-1= 18\times 243\\

3X-1= 4374

1 will be taken to right hand side and added as per rule

3 X = 4374+1\\3X= 4375

3 wil be taken on right hand side and divided as per rule

X= \frac{4375}{3} \\X= 1458.33

So the value of X if Y = 27 is 1458.33

Keywords:  Algebra

Learn more about Algebra at:

  • brainly.com/question/10710410
  • brainly.com/question/10708697

#learnwithBrainly

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Helen [10]

The quadratic equation use to determine the thickness of the frame, x is 4x² + 10x - 1 = 0.

The correct option is D.

<h3>What is a quadratic equation ?</h3>

A quadratic equation is an algebraic equation of the second degree in x.. The quadratic equation is written as ax2 + bx + c = 0, where x is the variable, a and b are the coefficients, and c is the constant term.

<h3>According to the given information:</h3>

Total area  = 7 square feet

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Total area = Length x Width

So,

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7 = 4x2 + 4x + 6x + 6

7 = 4x2 + 10x + 6

4x2 + 10x + 6 - 7 = 0

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The quadratic equation use to determine the thickness of the frame, x is 4x² + 10x - 1 = 0.

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I understand that the question you are looking for is:

Mary wants to hang a mirror in her room. the mirror and frame must have an area of 7 square feet. The mirror is 2 feet wide and 3 feet long.  Square with an inner frame with height of 2 ft on the left frame and width of 3 ft on the top. Arrow on the bottom frame with an x and an arrow on the right frame with an x. Which quadratic equation can be used to determine the thickness of the frame, x?

A. x² + 14x - 2 = 0

B. 2x² + 10x - 7 = 0

C. 3x² + 12x - 7 = 0

D. 4x² + 10x - 1 = 0

6 0
1 year ago
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I hope you get it.
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3 years ago
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Nataly_w [17]

Answer:

One avocado costs $1 and one tomato costs $0.50

Step-by-step explanation:

Set up a system of equations where t is the number of tomatoes and a is the number of avocados:

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Add them together and solve for a:

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Answer:

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Step-by-step explanation:

The graph of y = tan x passes through the origin, (0, 0).

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Not exactly sure but I think it should be 30 pieces

Step-by-step explanation:

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