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3 years ago

Given that 5x:8 = 7:2 Calculate the value of x.

Mathematics

2 answers:

OLEGan [10]3 years ago

5 0

Answer:

$x = 5.6$

Step-by-step explanation:

$5x : 8 = 7 : 2 \\ \frac{5x}{8} = \frac{7}{2} \\ \\ cross \: \: multiple \\ 10x = 8 \times 7 \\ 10x = 56 \\ \frac{10x}{10} = \frac{56}{10} \\ x = 5.6$

PolarNik [594]3 years ago

3 0

Answer:

x = 28/5 = 5.600

Read more about proportion at:

brainly.com/question/1781657

#SPJ1

7 0

2 years ago

Find the value of x from this adjoining figure

Fiesta28 [93]

Answer:

$x=15^\circ$

Step-by-step explanation:

Please refer to the attached figure for labeling of given diagram:

We are given the following angles:

$\angle AOC = 3x^\circ\\\angle BOD = 2x^\circ\\\angle EOF = 7x^\circ$

Angles opposite to each other when they are formed by crossing of two lines are known as vertically opposite angles. And vertically opposite angles are always equal to each other.

Using property of vertically opposite angles:

$\angle EOF = \angle AOB = 7x^\circ$

Line CD is a straight line, so $\angle COD = 180^\circ$

Also,

$\angle COD = \angle COA+\angle AOB+\angle BOD = 180^\circ\\\Rightarrow 3x + 7x + 2x=180^\circ\\\Rightarrow 12x =180^\circ\\\Rightarrow x = \dfrac{180}{12}\\\Rightarrow x = 15^\circ$

Hence, <em>answer</em> is $x = 15^\circ$ .

5 0

3 years ago

plz help me out it would be a prouder I don't know these tuitions pls help me I will give u 100 points and mark u brainliest 1,2

Fudgin [204]

Answer:

1) = H

2) = 0,4

4) = S

Step-by-step explanation:

1) H is found by counting across the horizontal (axis) as x and then downwards the vertical axis for y as y is a negative we find H for y at ( y = -5 )

But when we always read left to right we start with x first at 3 across. (x= 3) as this is the same as (3,-5)

2) We find x, y at (0,4) as 0 is middle of the two axis as they cross each other and 4 goes upwards. x= 0 y =4 = (0,4)

4) S is found as it is a refection of (8,-4) across the y axis.

(x = -8) is still x but it is valued as negative in y as (x = -8)

Then (y = -4) so it stays the same height as y and represents vertical axis line which is called y axis.

And so y reflects the same height.

But in all the others y represents vertical measure generally.

Whilst x represents horizontal measure generally. they both meet at a point which represents two values generally, like cost and time, network output and population, or cupcakes sales and duration/time.

7 0

3 years ago

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What is the solution for the equation 5/3b^3-2b^2-5= 2/b^3-2

Ray Of Light [21]

Answer:

the answer is c because it is lol try it

4 0

3 years ago

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When a single card is drawn from an ordinary 52-card deck, find the probability of getting a 2 or a red card?

kipiarov [429]

Let R be the event that a red card is drawn. There are two red suits of 13 cards each, so there are 26 ways of getting are red card. There are 52 cards altogether, so the probability of getting a red card is P(R) = 26 52 = 1 2 .
http://www.math.ttu.edu/~drager/Classes/02Spring/m1430/anse3.pdf

8 0

3 years ago

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