HELP!! due in a few minutes, giving brainlest and points

Given:

y is proportional to x.

y=20 and x=12.

To find:

The constant of proportionality and the equation for the proportional relationship.

Solution:

y is proportional to x.

[tex]y\propto x[/tex]

[tex]y=kx[/tex]              ...(i)

Where, k is the constant of proportionality.

Putting y=20 and x=12, we get

[tex]20=k(12)[/tex]

[tex]\dfrac{20}{12}=k[/tex]

[tex]\dfrac{5}{3}=k[/tex]

Putting [tex]k=\dfrac{5}{3}[/tex] in (i), we get

[tex]y=\dfrac{5}{3}x[/tex]

Therefore, the contestant of proportionality is [tex]k=\dfrac{5}{3}[/tex] and the equation for the proportional relationship is  [tex]y=\dfrac{5}{3}x[/tex].

Answer:

x=6

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

2(3x−5)=4x+2

(2)(3x)+(2)(−5)=4x+2(Distribute)

6x+−10=4x+2

6x−10=4x+2

Step 2: Subtract 4x from both sides.

6x−10−4x=4x+2−4x

2x−10=2

Step 3: Add 10 to both sides.

2x−10+10=2+10

2x=12

Step 4: Divide both sides by 2.

2x=12

x=6

Answer:

Step-by-step explanation:

1. the company C used 10 drivers

2.      6 + 7 + 8 + 9 + 10 + 10 + 10 + 12 + 14 + 14 = 100/10. The Mean = 10  

(6- 10) + (7- 10) + (8- 10) + (9- 10) + (10- 10) + (10- 10) + (10- 10) + (12- 10) + (14- 10)

4 + 3 + 2 + 1 + 0 + 0 + 0 + 2 + 4  = 16/10 = 1 6/10

3. The groups that had the most deliveries where group A and B

4. So if there are 6 deliveries of group A and 14 deliveries from group B i think the MAD would be 4

By reading the dot plot,

Number of drivers used by company C in its sample = 10

Mean absolute deviation for company C's data = 2

Company B has the greatest mean number of deliveries.

The mean deliveries of company B is 4 times MAD of company A.

Dot plot is a simple form of data visualization that consists of data points plotted as dots on a graph with an x- and y-axis.

Number of units used in the sample of a dot plot can be calculated by simple counting.

The mean absolute deviation (MAD) is the mean distance between each data value and the mean of the data set.

We are given the sum of each point from the mean. It is 20. Mean absolute deviation can be calculated by dividing this sum by number of observations.

Mean absolute deviation of company C  = 20/10 = 2.

Mean A = 6

Mean B = 14

Mean B - Mean A = 8 = 4 * 2 = 4 times MAD (since MAD =2 for both companies).

Learn more about dot plot here

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Answer:

Step-by-step explanation:

43/100 or  43%

Answer:

y = x + 8

Step-by-step explanation:

For 8cm of thread, 1cm of the bracelet may be produced. therefore being y(thread) = x(bracelet) with the addition of 8 (+8). Hope this helps!

Answer:

I don't know I'm really really sorry now can you give me a

Answer: The velocity of the ball is 108.8 ft/s downwards.

Step-by-step explanation:

When the ball is dropped, the only force acting on the ball will be the gravitational force. Then the acceleration of the ball will be the gravitational acceleration, that is something like:

g = 32 ft/s^2

To get the velocity equation we need to integrate over time, to get:

v(t) = (32ft/s^2)*t + v0

where v0 is the initial velocity of the ball. (t = 0s is when the ball is dropped)

Because it is dropped, the initial velocity is equal to zero, then we get:

v(t) = (32ft/s^2)*t

Which is the same equation that we can see in the hint.

Now we want to find the velocity 3.4 seconds after the ball is dropped, then we just replace t by 3.4s, then we get:

v(3.4s) = (32ft/s^2)*3.4s = 108.8 ft/s

The velocity of the ball is 108.8 ft/s downwards.

Answer:

b

Step-by-step explanation:

[tex]3x - 2y = 12 \\ 2x + 2y = 3 \\ 2y = 3 - 2x \\ 3x - (3 - 2x) = 12 \\ 3x - 3 + 2x = 12 \\ 5x = 15 \\ x = 3 \\ 2y = 3 - 6 = - 3 \\ y = - \frac{3}{2} [/tex]

(3, -3/2)

Answer:

HL

Step-by-step explanation:

PQ = PR     {hypotenuse}

PS = PS      {Reflexive property, PS is the leg of the both triangles}

∠PSQ = ∠PSR = 90

So, HL postulate

Step-by-step explanation:

[tex] \sin(60) = \frac{y}{10} \\ y = 5 \sqrt{3} [/tex]

Answer:

0 solutions

Step-by-step explanation:

8x + 2y = 14

8x + 2y = 4  

4 not equal to 14

Answer: The volume is 528 cubic inches

Can i have brainliest?

Answer:

528 Cubic Inches

Step-by-step explanation:

The first thing you would do is, since the equation states that the total height of the bench is 8 inches, is place 4 as the height of the rectangular prism piece of the bench. Next you would use of the dimensions of each of pieces of the bench to calculate the area of each piece respectively using the equation l*w*h. The equations are 4*4*25 which equals 400, 4*4*4 which equals 64, and 4*4*4 which equals 64. Next, you would add them all together which gives you a grand total of 528 cubic inches.

9514 1404 393

Answer:

  x = {-0.44, 1.69}

Step-by-step explanation:

Multiply by the denominator to eliminate the fraction.

  3 = x(4x -5)

  4x^2 -5x -3 = 0 . . . . . subtract 3 and put in standard form

Using the quadratic formula with a=4, b=-5, c=-3, we have the solutions as ...

  [tex]x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-(-5)\pm\sqrt{(-5)^2-4(4)(-3)}}{2(4)}\\\\x=\dfrac{5\pm\sqrt{73}}{8}\approx \{-0.443, 1.693\}[/tex]

Solutions rounded to hundredths are ...

  x = -0.44

  x = 1.69

_____

A graphing calculator can show the x-intercepts easily, so it works well to write the equation in the form

  f(x) = 0

  3/(4x -5) -x = 0

Step-by-step explanation:

A because the thing on -2 Is that

Answer:

(a) 7 + 4 = 11

(b) 1 + 3 + 5 = 9

(c) (7 x 2) + 1 = 15

(d) (7 x 2) - 1 = 13

(e) 13 - 9 = 4

Step-by-step explanation:

(a) 5 + 4 = 9

(b) 7 + 1 + 11 = 19

(c) 25 = 12 + 12 + 1

(d) 7 = 4 + 4 - 1

(e) 13 - 11 = 2

Answer:

25

Step-by-step explanation:

Given the equation :

T = 200 - 4R

T = amount of money left ; if T = $100

R = number of rides

$100 = 200 - 4R

$100 - $200 = - 4R

-$100 = - 4R

R = 100/ 4

R = 25

25 rides

Answer:

Step-by-step explanation:

f(p)=12p

Answer:

12p

Step-by-step explanation:

Since each pizza costs $12 dollars and "p" represents how many pizzas she bought, you multiply 12 by "p" to get the total amount of money that she had spent.

Answer: I would say the angle would have to be around 85* because with 53 being on the bottom left corner and the 20* at the top and 85 at the left it would be close when you connect them

Step-by-step explanation:

Answer:

x = [-b +- sqrt(b^2-4ac)]/2a

Step-by-step explanation:

Step-by-step explanation:

80%full

20% is still available

Answer: 13,663

Step-by-step explanation:

basically I multiply 427 and32 which u get 13,664 and then u subtract 1 and u get ur answe of 13663

Answer: if god said what?

Step-by-step explanation:

Answer:

god said what? no? if no then I guess your not entering heaven

Answer:

Step-by-step explanation:

2,28,80

Answer:

2

28

80

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

20^2 times 3.14= 1256

21^2 times 3.14= 1384.74

the sum of those two is 2640.74

the square root of that is 29

The radius of the circle is 29 cm.

We have the circle whose area is equal to the sum of the areas of two circles whose radii are 20cm & 21cm.

We have to find the radius of the circle.

Let the radius of the circle be x.

We know that the area of the circle is [tex]\pi r^{2}[/tex]. Then -

[tex]\pi x^{2} =\pi r^{2} +\pi R^{2} \\x=\sqrt{r^{2} + R^{2}} \\[/tex]

Now, in the question given to us -

r = 20cm  and R = 21cm  and 'x' denotes the radius of the circle we have to find.

Substituting the values in the above formula, we get -

x = [tex]\sqrt{400+441}[/tex]

x =29 cm

Hence, the radius of the circle is 29 cm.

To solve more problems on finding the area of circle, visit the link below -

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Answer:

just add them up

Step-by-step explanation:

Answer:

5784

Step-by-step explanation:

Because 20 percent of 4820 is 964 and then you add 4820 and 964 to get 5784 :)