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Vladimir79 [104]
3 years ago
12

What would you get for 12y=2 1/4 the answer

Mathematics
1 answer:
myrzilka [38]3 years ago
5 0

$y=\frac{3}{16} $

Solution:

Given expression:

$12y=2\frac{1}{4} $

To solve this and find the value of y.

Let us first convert the mixed fraction into improper fraction.

$2\frac{1}{4} =\frac{(2\times4)+1}{4}

     $ =\frac{8+1}{4}

$2\frac{1}{4}  =\frac{9}{4}

Now, substitute this in the given expression.

$12y=\frac{9}{4} $

Divide by 12 on both sides of the expression.

$\frac{12}{12}y=\frac{9}{4\times 12} $

$y=\frac{9}{48} $

To reduce this expression, divide by 3 on both numerator and denominator.

$y=\frac{9\div 3}{48\div 3} $

$y=\frac{3}{16} $

Hence the answer is y=\frac{3}{16}.

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What does a=? b=? Angle B=?
Kobotan [32]

Answer:

If you were solving the right triangle, it would be:

m∠A = 46°

m∠B = 44°

m∠C = 90°

AB = 32

BC ≈ 23

AC ≈ 24

Step-by-step explanation:

To solve this right triangle, you can use trigonometric ratios to solve for the sides. To find the angle measures:

m∠A = 46° (given)

m∠B = x

m∠C = 90° (given)

180 - (46 + 90) = x

180 - 136 = x

44 = x

m∠B = 44°

To find the side measures, you can use tangent, sine, cosine, and the Pythagorean Theorem.

Recall that:

tangent = opposite side/adjacent side

sine = opposite side/hypotenuse

cosine = adjacent side/hypotenuse

So:

sin46 = BC/32

BC = 32 (sin46)

BC ≈ 23

tan46 = BC/AC

AC = BC/tan46

AC = (23.01887361...) (tan46)

AC ≈ 24

5 0
2 years ago
Solve the system using elimination.<br> 2x + 18y = -9<br> 4x + 18y = -27
Elan Coil [88]

First, let's cancel out the x by multiplying 2x + 18y = -9 by -2.

-2 ( 2x + 18y = -9) = -4x -36y = 18

Then, we combine the two equations.

-4x + 4x = 0

18y - 36y = -18y

-27 + 18 = -9

Our new equation is -18y = -9.

Now, divide both sides by -18.

-18y / -18 = y

-9/ -18 = 1/2

y = 1/2

We can plug in a value for y since y = 1/2 now.

Let's use 2x + 18y = -9

Plug in y.

2x + 18(1/2) = -9

2x + 9 = -9

Then, subtract 9 from both sides.

2x = -18

Divide by 2.

2x/2 = x

-18/2 = -9

x = -9

Lastly, we can plug in both x and y values to see it works.

2(-9) + 18(1/2) = -9

-18 + 9 = -9

Therefore, the values of x and y does work.

x = -9

y = 1/2

4 0
3 years ago
Please help please please please
kap26 [50]
I'm pretty sure it is 1 out of nine or 1 out of 8.
5 0
3 years ago
What is the image of (-4,-2) after a reflecton over the line y= -x
Slav-nsk [51]

The image of (-4, -2) after a reflection over the line y = -x is (2, -4).

<h3>What is a transformation?</h3>

In Mathematics, a transformation can be defined as the movement of a point from its original (initial) position to a final (new) location. This ultimately implies that, when an object is transformed, all of its points would be transformed as well.

<h3>The types of transformation.</h3>

Generally, there are different types of transformation and these include the following:

  1. Reflection
  2. Rotation
  3. Translation
  4. Dilation

<h3>What is a reflection?</h3>

A reflection can be defined as a type of transformation which moves every point of the object by producing a flipped but mirror image of the geometric figure.

In Geometry, a reflection over the y-axis is given by this rule (x, y) → (-x, y). Thus, line y = -x would become:

(-4, 2) → (2, -4).

Read more on transformation here: brainly.com/question/1548871

#SPJ1

7 0
2 years ago
Nadia built a robot to filter air and water efficiently she expects the robot to filter more than 343 liter of air and water whi
crimeas [40]

Step-by-step explanation:

If she is able to achieve her aim, then the robot is very efficient, as it uses as low as 49 joules in filtering 343 litres of air and water.

It will now be a question of what time the robot is able to achieve this feat, if it is able to do it in a time that matches the quality of the work it does, then it will be reasonable to call the robot efficient, and fast too.

7 0
3 years ago
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