please help asap !!!!!!

Answer:

There are 1240 students at Washington middle school.  

Step-by-step explanation:

Percentages and Portions

We can find portions of a whole by correctly managing the percentages of each part. We know 25% of all students at Washington middle school were on the honor roll. From that portion, 60% of the students are seventh graders. That means 40% of the 25% are eight graders, i.e. 40*25%=10% were from eight grade.

We have 10% of all students are 124, thus the number of students are 124/10%=1240

There are 1240 students at Washington middle school.  

Let's test the answer. 25% of 1240 students are on the honor roll, which is 310 students. 40% of 310 students are from 8th grade, 40%*310 = 124 as stated in the problem

Answer:

5.25 minutes

Step-by-step explanation:

Answer:

i want to drive alone but i am 15 and need to be 17

Step-by-step explanation:

Answer:

22.7°

Step-by-step explanation:

22.714° to nearest 10th is 22.7

Answer:

13.892444

Step-by-step explanation:

The height difference: 12

The length difference: 7

12^2+7^2=c^2

193=c^2

13.892444=c

Answer:

[tex]\sqrt{193}[/tex]

step explanation:

Answer:

O length = 11 inches width = 12.5 inches

Step-by-step explanation:

Answer: Well if you do 325 ÷ 2/5 = 130. If you try process of elimination with the numbers you’d get the right answer! Like there’s no way you could do 325 - 2/5 cause you’d get 324.6, and adding it you’d get 325.4 so your only thing left to do is multiply :)

Step-by-step explanation:

Answer:

$1146.01

Step-by-step explanation:

The original amount is 100%. The account earns 3.25% per year, so after 1 year it is worth 100% + 3.25% = 103.25% of the original amount. Since the interest is compounded, after the second year, the account is worth 103.25% of the amount at the end of the first year.

$1,075 * 1.0325 * 1.0325 = $1146.01

Answer:

b = 4

Step-by-step explanation:

Answer:

1 17/18= 1 17/18

Step-by-step explanation:

1718 is already in the simplest form. It can be written as 0.944444 in decimal form (rounded to 6 decimal places).

Answer:

Variance: 322.4479999999996

Standard Deviation: 17.956837137981722

Answer:

348

.................

Answer:

[tex] \color{magenta} \huge{ \boxed{answer}}[/tex]

hopefully help:)

Step-by-step explanation:

Answer: D. The distribution of sample variances tends to be a normal distribution.

Step-by-step explanation:

The properties of the sampling distribution of the​ variance include:

• The expected value of the sample variance is equal to the population variance.

• The mean of the sample variances is the population variance.

• The sample variances target the value of the population variance.

Therefore, the option that isn't a property of the sampling distribution of the variance will be option D "The distribution of sample variances tends to be a normal distribution".

We should note that the sampling distribution came came in place as a result of the central limit theorem. The sample variance gives a true representation of the variance of the population as it is an unbiased estimator.

The one that does not demonstrate a property of variance's sampling distribution would be:

D). The distribution of sample variances tends to be a normal distribution.

The variance's sampling distribution property states that:

As per the question, the fourth statement does not exemplify one of its properties as the distribution displayed by sample variances is inclined towards normal distribution.

Thus, option D is the correct answer.

Learn more about "Variance" here:

brainly.com/question/9431483

Answer:

11: 1 tens, 1 ones      17: 1 tens, 7 ones     17 is greater number, it is greater by 6

Answer:

x = 4

Step-by-step explanation:

So you multiply all in the ( x + 1) by 4 so 4 times x equals 4x and 4 times 1 is 4

5x = 4x + 4 subtract 3x because that is the only common thing on the other side you'll get

x = 4 and that's your answer

Answer:

Step-by-step explanation:

Answer:

x = -5/3; x = 5

Step-by-step explanation:

8x(x - 5) - 25 = 5x(x - 6); Given

8x^2 -40x - 25 = 5x^2 - 30x; Multiply/Simplify

3x^2 - 10x - 25 = 0; Addition Property of Equality

(3x + 5)(x - 5) = 0; Factor

x = -5/3; x = 5; Solve

Answer:

.75% .0075 of the people that went to the concert said they would go if they could not see the band again. To find this you simply divide 9 by 1200, which equals .0075

Step-by-step explanation:

Answer:

% 236 did not go

% Decimal 2.36

Step-by-step explanation:

% 450 - 214

Answer:

24

Step-by-step explanation: 12 divided by 1/2 is 24

Answer:

24 pls GIVE ME BRAINLIEST not trynna be demanding but iv never had one before

Step-by-step explanation:

8/9 ÷ 4 = 8/36 as simplified as 2/9 in fraction form.

Answer:

8/36

Step-by-step explanation:

I divided  8/9 by 4

Answer:

Based on what I researched that would be False.

Step-by-step explanation:

Human capital deepening is the increase of capital workers, it also includes skills or higher education.

Answer:

When you reflect a point of the x-axis you can apply:

(x,y) -> (x,-y)

Using this:

(2,-5) -> (2,5)

Since both the x and y places are positive, it is in quadrant 1.

Hope this helps!

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

7x-5+2x-1=9x-6

d/dx (9x-6)=9

Answer:

Step-by-step explanation:

24/300 = 0.08 = 8%

Answer:

[tex]Q' =(-4,-3)[/tex]

Step-by-step explanation:

Given

[tex]Q = (3,-4)[/tex]

Rotation = +270 degrees

Required

Determine the new coordinates of Q (i.e. Q')

When a point (x,y) is rotated +270° about the origin, the new coordinates is: (y,−x)

So:

[tex]Q = (3,-4)[/tex]

Where:

[tex]x = 3[/tex] and [tex]y = -4[/tex]

Q' will be:

[tex]Q' =(-4,-3)[/tex]

Answer:

20

Step-by-step explanation:

given:

b=5

c=8

6(b-3)+ c

6(5-3)+8

6(2)+8

12+8

20

other method

6(b-3)+c

6b-18+8

30-18+8

12+8

20

Answer:

20

Step-by-step explanation:

b is 5 and c is 8

so we can substitute them on the given equation