All categories

3 years ago

12/x=4/3 help me what do x =

Mathematics

2 answers:

marysya [2.9K]3 years ago

8 0

Answer:

$\boxed {\sf \: x = 9}$

Let's Solve

$\sf \: \frac{12}{x} = \frac{4}{3}$

$\sf \: 12 \times 3 = 4 \times x$

$\sf \: 36 = 4x$

$\sf x = \frac {\cancel{36}} {\cancel{4} }$

$\sf \: x = 9$

Hope It's Helps``

pashok25 [27]3 years ago

7 0

Answer:

x=9

Step-by-step explanation:

We cross multiply to get 4x=36. Divide both sides by 4 to get x = 9.

Hope it helped :)

You might be interested in

6+(-1)+(-12) i will give brainllest

Natasha_Volkova [10]

Answer: -7

Step-by-step explanation:

7 0

3 years ago

Estimate a 25% tip on a bill of $61.77 by first rounding the bill amount to the nearest ten dollars

Nonamiya [84]

Answer:

total bill amount + tip = $77.21

Step-by-step explanation:

8 0

2 years ago

The area of a rectangular pool table is: x2 + 14x +40. What are the dimensions of the table?

fiasKO [112]

Answer:

the width is (x + 4) and the length is (x + 10)

Step-by-step explanation:

The area of a rectangle is given by A = L * W, where L is the length and W the width.

If we factor the given x^2 + 14x + 40, we get (x + 10)(x + 4). Thus, the width is (x + 4) and the length is (x + 10).

3 0

3 years ago

Pls I need help

Lelu [443]

(1) A part to whole ratio compares different parts of the group to each others is true.

(2) the ratio 3:1 can also be written as 1 to 3 is false.

(3) A part to whole ratio can be written as a fraction, a decimal, and a percent is true.

(4) two term and three term ratios compare quantities measures in different units is false.

(1) A ratio has two parts, a numerator and a denominator.

Example: if we have 2 oranges and 3 apples in a fruit basket.

fruits ratio = 2:3

total fruits ratio = 5

fraction of orange = $\frac{2}{5}$

fraction of apple = $\frac{3}{5}$

This ratio compares a part of each fruit to the whole

Thus, a part to whole ratio compares different parts of the group to each others is true.

(2) The ratio 3:1 is written as $\frac{3}{1} =3$ .

Thus, the ratio 3:1 can also be written as 1 to 3 is false.

(3) the ratio 2:3, has the following fractions, decimal and percentage with respect to whole ratio;

fraction of 2 = $\frac{2}{5}$ , decimal = 0.4, percentage = 40%

fraction of 3 = $\frac{3}{5}$ , decimal = 0.6, percentage = 60%

Thus, a part to whole ratio can be written as a fraction, a decimal, and a percent is true.

(4) the units of the quantities compared have to be the same in order to find their ratios.

Thus, two term and three term ratios compare quantities measures in different units is false.

Learn more here:brainly.com/question/2284943

6 0

3 years ago

Find the sum \[\sum_{k = 1}^{2004} \frac{1}{1 + \tan^2 (\frac{k \pi}{2 \cdot 2005})}.\]

vampirchik [111]

Answer:1002

Step-by-step explanation:

$\Rightarrow \sum_{k=1}^{2004}\left ( \frac{1}{1+\tan ^2\left ( \frac{k\pi }{2\cdot 2005}\right )}\right )$

and $1+\tan ^2\theta =\sec^2\theta$

and $\cos \theta =\frac{1}{\sec \theta }$

$\Rightarrow \sum_{k=1}^{2004}\left ( \cos^2\frac{k\pi }{2\cdot 2005}\right )$

as $\cos ^2\theta =\cos ^2(\pi -\theta )$

Applying this we get

$\Rightarrow \sum_{1}^{1002}\left [ \cos^2\left ( \frac{k\pi }{2\cdot 2005}\right )+\cos^2\left ( \frac{(2005-k)\pi }{2\cdot 2005}\right )\right ]$

every $\theta$ there exist $\pi -\theta$

such that $\sin^2\theta +\cos^2\theta =1$

therefore

$\Rightarrow \sum_{1}^{1002}\left [ \cos^2\left ( \frac{k\pi }{2\cdot 2005}\right )+\cos^2\left ( \frac{(2005-k)\pi }{2\cdot 2005}\right )\right ]=1002$

6 0

3 years ago