help pls i’ll name u brainiest

Answer:

f = (N² - H)/6

Step-by-step explanation:

Step 1: Write equation

N² = 6f + H

Step 2: Solve for f

Answer:

BBBBBBBB

Step-by-step explanation:

brainliest?

Answer:

Alia=28

Huda=12

Step-by-step explanation:

Let the constant of proportionality be x

Hence, no. of sweets Alia had initially = 7x

No. of sweets Huda had initially = 3x

No. of sweets Alia has now= 7x-3

No. of sweets Huda has now= 3x+3

We know that, the ratio of the no. of sweets Alia has now to no. of sweets Huda has now = 5:3

Hence,

[tex](7x-3) : (3x+3)=5:3\\By\ equalizing\ the\ ratios,\ we\ get,\\ 3(7x-3)=5(3x+3)\\21x-9=15x+15\\21x-15x=15+9\\6x=24\\x=4[/tex]

As we now got the constant of proportionality to be 4,

No. of sweets Alia had initially = 7*4=28

No. of sweets Huda had initially= 3*4=12

Given parameters:

Original ratio number of sweets of Alia to Huda = 7:3

Final ratio  = 5:3

Alia gives 3 sweets

Huda receives 3 sweets

To solve this problem, we have to derive an algebraic equation.

Let us assume that the total number of sweets = x

  So;

  The ratio originally is;

                               7x : 3x

Alia has 7x sweets

Huda has 3x

Now Alia has (7x -3)sweets after giving out 3

        Huda has (3x + 3)sweets after receiving 3

So;

           7x -3  :  3x + 3  = 5 : 3

                    [tex]\frac{7x - 3}{3x + 3} = \frac{5}{3}[/tex]

       3(7x -3) = 5(3x + 3)

       21x - 9  = 15x + 15

       21x -15x = 15 + 9

          6x  = 24

            x = 4

Initially, Alia has 7x sweets  = 7 x 4  = 28 sweets

             Huda has 3x sweets = 3 x 4  = 12 sweets

Therefore, Alia has 28 sweets and Huda 12 sweets initially.

The expression that finds the change in temperature per hour for this considered case is given by: Option D: [tex]\dfrac{-47/4}{7/2}[/tex]

Suppose that we have to measure the rate of change of y as x changes, then we have:

[tex]Rate = \dfrac{y_2 - y_1}{x_2 - x_1}[/tex]

where we have

[tex]\rm when \: x=x_1, y = y_1\\when\: x = x_2, y= y_2[/tex]

Remember that, we divide by the change in independent variable so that we get some idea of how much the dependent quantity changes as we change the independent quantity by 1 unit.

(5 change per 3 unit can be rewritten as 5/3 change per 1 unit)

For this case, we're specified that:

Expressing final temperature in simple form:

[tex]-12\dfrac{1}{4} = -12 + \dfrac{1}{4} = \dfrac{-12 \times 4}{4} + \dfrac{1}{4} = \dfrac{-47}{4}[/tex]

Expressing time taken for the considered temperature change in simple forms:

[tex]3\dfrac{1}{2} = 3 + \dfrac{1}{2} = \dfrac{3 \times 2}{2} + \dfrac{1}{2} = \dfrac{7}{2}[/tex]

The temperature depends on time.

Suppose that:

x = time, y = temperature

Then, suppose that:

Then, the rate of change of temperature would be:

[tex]Rate = \dfrac{y_2 - y_1}{x_2 - x_1}[/tex]

The change in time is: [tex]x_2 - x_1 =\dfrac{7}{2}[/tex] (in hours).

Thus, we get:
[tex]Rate = \dfrac{y_2 - y_1}{x_2 - x_1} = \dfrac{-47/4 - 0}{7/2} = \dfrac{-47/4}{7/2}[/tex]

Thus, the expression that finds the change in temperature per hour for this considered case is given by: Option D: [tex]\dfrac{-47/4}{7/2}[/tex]

Learn more about rate of change here:

https://brainly.com/question/19167959

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Answer:

option D!

Step-by-step explanation:

Answer:

23*

Step-by-step explanation:

Answer:

not sure why homie said 23 lol but its D. 88

Step-by-step explanation:

Answer:

The probability that he will visit at least one of the four cities is 0.88

Step-by-step explanation:

The given information can be presented as follows;

The probability that he will visit London = 0.70 = A

The probability that he will visit Paris = 0.64 = B

The probability that he will visit Rome = 0.58 = C

The probability that he will visit Amsterdam = 0.58 = D

The probability that he will visit;

London and Paris = 0.45 = A∩B

London and Rome = 0.42 = A∩C

London and Amsterdam = 0.41 = A∩D

Paris and Rome = 0.35 = B∩C

Paris and Amsterdam = 0.26 = B∩D

London, Paris and Rome = 0.23 = A∩B∩C

London, Paris, and Amsterdam = 0.26 = A∩B∩D

London, Rome and Amsterdam = 0.21 = A∩C∩D

Paris, Rome and Amsterdam = 0.20 = B∩C∩D

All 4 cities = 0.12 = A∩B∩B∩D

Therefore, the probability, P(at least one), that he will visit at least one of the four cities is the complement of the probability that he will visit all the four cities

∴ P(at least one) = (A∩B∩B∩D)' = 1 - (A∩B∩B∩D) = 1 - 0.12 = 0.88

P(at least one) = 0.88

Which gives, the probability that he will visit at least one of the four cities = 0.88.

Answer:

Angle 1: 127

Angle 2: 153

Step-by-step explanation:

First, let's find angle 1 by finding the angle that's supplementary to it.

To solve for it, we can set up an equation where the unknown angle and the other angles in the triangle it's in add up to 180:

x+95+32=180

x=53

Since angle 1 is supplementary to 53, that means that angle 1 is equal to 180-53 = 127.

Then, to find angle 2, we can find the angle that's supplementary to it.

To solve for that, we can set up an equation where that unknown angle and the other angles in the triangle it's in add up to 180:

26+127+x = 180

x = 27

Since angle 2 is supplementary to 27, that means that angle 2 is equal to 180-27 = 153.

Answer:

[tex]x\leq 35[/tex] where [tex]x[/tex] denotes speed of the car

Step-by-step explanation:

Given: The speed limit on a city street is 35 kilometers per hour.

To write and graph: an inequality to  describe a car’s possible speed.

Solution:

Let the speed of a car be [tex]x[/tex] kilometers per hour.

As the speed limit on a city street is 35 kilometers per hour,

[tex]x\leq 35[/tex]

First draw the graph of [tex]x=35[/tex] (see figure a.)

Plot the points [tex](35,0),(35,5),(35,10),(34,15)[/tex]

Take a point on the left side of line x = 35 say [tex](x,y)=(0,0)[/tex] and put it in [tex]x\leq 35[/tex]

[tex]0\leq 35[/tex] which is true.

So, shade the graph on the left side of line x = 35

See the graph b.

the pink part represents the inequality [tex]x\leq 35[/tex]

Answer:

132.25

Step-by-step explanation:

Answer:

Four times the amount of flour for the raisin bread plus 2.5 cups equals 12.5 cups total. The equation is 4x + 2.5 = 12.5. First, I subtract 2.5 from both sides, and then I divide both sides by 4. Each loaf contains 2.5 cups of flour.

Step-by-step explanation:

Answer:

Four times the amount of flour for the raisin bread plus 2.5 cups equals 12.5 cups total. The equation is 4x + 2.5 = 12.5. First, I subtract 2.5 from both sides, and then I divide both sides by 4. Each loaf contains 2.5 cups of flour.

Step-by-step explanation:

Answer:

Approximately 2 gallons of paint are required to paint four bedroom walls

Step-by-step explanation:

Dimensions of the four bedroom walls = 10 inches wide by 6 inches tall

As 1 inch = 1.5 feet,

10 inches [tex]=10(1.5)=15[/tex] feets

6 inches [tex]=6(1.5)=9[/tex] feets

Dimensions of the four bedroom walls = 15 feets wide by 9 feets tall

Area of one wall = product of the dimensions [tex]=15(9)=135[/tex] square feets

Area of four walls = [tex]4(135)=540[/tex] square feets

Area of four walls covered by a gallon of paint = 250 square feets

So,

Amount of paint required = [tex]\frac{540}{250}=2.16[/tex]

That is approximately 2 gallons of paint are required to paint four bedroom walls

Answer:

Sorry I don't know :'(

Step-by-step explanation:

I'm in 6th grade too

Answer:ITS 465

Step-by-step explanation:

4 + 6 + 5 = 15

AND THE DIFFERENCE IS 2 BETWEEN 6 AND 4

Answer:

3,000 is the numerical increase and 15% is the percentage increase.

Step-by-step explanation:

It's quite easy to see that 3,000 more people were added to 20,000, since 23,000 - 20,000 = 3,000. To find the percentage, simply take 20,000 and divide it by the additional increase number, which is in this case 3,000. 20,000/3,000 = 0.15. Converting decimals to percentages, we take the digits behind the decimal and add the percent sign since 100 is equal to 1 or the whole. So 0.15 = 15%, which is the percent increase.

Answer:

actual amount of increase is 3000

% increase is 15%

Step-by-step explanation:

The actual amount of increase is

23,000-20,000= 3,000

To find the percent increase, take the actual amount of increase and divide by the original amount

3,000/20000=.15

Change to percent

15%

Answer:

Step-by-step explanation:

You want to start by subtracting 2.10 - 2 which = $0.10

The cost of the tennis ball is $0.05.

To find the cost of the tennis ball:

Translating the word problem into an algebraic expression, we have;

[tex]R + B = 2.10[/tex]   ....equation 1

[tex]R = B + 2[/tex]    .....equation 2

Substituting eqn 2 into eqn 1, we have;

[tex]B + 2 + B = 2.10\\\\2B + 2 = 2.10\\\\2B = 2.10 - 2\\\\2B = 0.10\\\\B = \frac{0.10}{2}[/tex]

Tennis ball, B = $0.05

Therefore, the tennis ball cost $0.05.

Find more information: https://brainly.com/question/596290

Answer:

Answer:

6 0°

Step-by-step explanation:

sum the parts of the ratio, 2 + 4 = 6 parts

A linear pair of angles sum to 180°

Divide by 6 to find the value of one part of the ratio.

180° ÷ 6 = 30° ← value of 1 part of the ratio, thus

2 parts = 2 × 30° = 60° ← smallest angle

Answer:

Step-by-step explanation:

so you are trying to find the scale of the map which means you are comparing the distance on the map to the distance in real life. That being said you are trying to find:

For every 1cm on the map how far is that in real life?

so when you make your equation to solve like so (converting the miles to cm for an easy calculation:

2.5x = 48203

in this equation x (your answer) is the scale of map:real life

so x is how far 1cm on the map is in real life

Answer:

The answer is 21

Step-by-step explanation:

Let your number be x so the equation would be

x-8=34-x

2x=42 divide by 2

x=21

brainllist plz

Answer:

sorry no answear

Step-by-step explanation:

Answer:

okay so first subtract 20 from 35. you get 15 then you wanna divide 15 by 0.50 you should get 30 Penelope will be able ride 30 rides.

Answer:

True!!!!!!!

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

So area is length times width for the rectangle and your length is 4 and your width is 6+7, if you do 4 times 6+7 you will get 52. If you want to be sure you can go down the answer options and do them until you find one that equals 52 which in this case is C.

4 x (6+7) = area

(in case you need the equation)

Answer:

B. (0,2)

Step-by-step explanation:

The y-intercept is the point that passes through the y-axis. The y-intercept is when the x-value equals 0.

And that is at (0,2)

Remember that a point always has the x first then the y-value (x,y)

Answer:

x = 4/( k+3)

Step-by-step explanation:

x = (4 - 3x)/k

Multiply each side by k

xk = (4 - 3x)/k*k

xk = (4 - 3x)

Add 3x to each side

xk+3x = 4

Factor out x

x ( k+3) =4

Divide each side by (k+3)

x ( k+3) / ( k+3) =4/( k+3)

x = 4/( k+3)