Explain the concept of regression to the mean between
generations.

Answer:

Adult tickets cost $11 and child tickets cost $13

Step-by-step explanation:

Multiply the second equation by -2, then add the equations together.

(8a+9c=205)

−2(4a+3c=83)

Becomes:

8a+9c=205

−8a−6c=−166

Add these equations to eliminate a:

3c = 39

Then solve3c=39for c:

3c=39

[tex]\frac{3c}{3}[/tex] = [tex]\frac{39}{3}[/tex]

(Divide both sides by 3)

c = 13

Now that we've found c let's plug it back in to solve for a.

Write down an original equation:

8a+9c=205

Substitute 13 for c in 8a+9c=205:

8a+(9)(13)=205

8a+117=205 (Simplify both sides of the equation)

8a+117+−117=205+−117 (Add -117 to both sides)

8a=88

[tex]\frac{8a}{8}[/tex] = [tex]\frac{88}{8}[/tex]

(Divide both sides by 8)

a = 11

Answer:

Interior alternate

Step-by-step explanation:

They’re on the inside but opposite form each other

Answer:

Interior alternate

Step-by-step explanation:

Answer:

262.5

Step-by-step explanation:

1. do cross multiplication

2nd ans is 360 20x18 or just add 20 18 times

Answer:

262.5

Step-by-step explanation:

Answer:

(2/3)m units

Step-by-step explanation:

The segment is m units long. After dividing it into 3 three equal parts, each part is m/3 units long. The midpoint of the first part is located at (m/3)/2 = m/6 units from the beginning of the segment. The midpoint of the last part is located at (2/3)m + m/6 = (5/6)m units from the beginning of the segment. Then, the distance between the midpoints of the first and the last parts is (5/6)m - m/6 = (2/3)m units

Line can be divided into segments.

The distance between the two midpoints is 2m/3

The length of the segment is given as:

[tex]\mathbf{Length = m}[/tex]

The length of each segment, after dividing them into 3 segments is:

[tex]\mathbf{Segment = \frac m3}[/tex]

The midpoint of the first segment is:

[tex]\mathbf{First= \frac m6}[/tex]

The midpoint of the third segment is the sum of the first two segments, and the half a segment

So, we have:

[tex]\mathbf{Third = \frac m3 + \frac m3 + \frac m6}[/tex]

[tex]\mathbf{Third = \frac{5m}{6}}[/tex]

So, the distance between the two midpoints is:

[tex]\mathbf{Distance = \frac{5m}{6} - \frac{m}{6}}[/tex]

[tex]\mathbf{Distance = \frac{5m - m}{6}}[/tex]

[tex]\mathbf{Distance = \frac{4 m}{6}}[/tex]

[tex]\mathbf{Distance = \frac{2m}{3}}[/tex]

Hence, the distance between the two midpoints is 2m/3

Read more about line segments at:

https://brainly.com/question/17313387

Answer:

Step-by-step explanation:

[tex]-\frac{2}{3}a+\frac{5}{6}a-\frac{1}{6}[/tex]

Like term are       [tex]-\frac{2}{3}a+\frac{5}{6}a[/tex], LCD of 3 ,6 = 6

[tex]\frac{-2*2}{3*2}a+\frac{5}{6}a-\frac{1}{6}=\frac{-4}{6}a+\frac{5}{6}a-\frac{1}{6}\\\\=\frac{(-4+5)}{6}a-\frac{1}{6}\\\\=\frac{1}{6}a-\frac{1}{6}\\[/tex]

Answer:To find the volume of a composite solid, u identify the different parts it is made of, work out the volume of each part independently, and sum up the volumes of its parts. For composite prisms, where the bases are a composite shape, the area of the bases is the sum of the areas of the parts it is made of.

Answer:i think it’s a=az(b)

Step-by-step explanation:

Answer:

6:10

Step-by-step explanation:

To solve this problem, find the time 2 hours and 14 minutes before 8:24.

2 hours before 8:24 is 6:24.

14 minutes before 6:24 is 6:10.

Therefore, Nina started skating at 6:10.

Answer:

6:10

Step-by-step explanation:

Cuz if you do 8:24 - 2:24 you get 6:10

Answer:

x = -1

Step-by-step explanation:

Write it in exponential form, 2^3 = 2^x+4

Since base is the same, Set the exponents equal, 3 = x + 4

Move the terms, variable goes to the left side and change the sign -x + 3 = 4

Subtract and calculate, -x = 1

Change the signs on both sides, x = -1

Answer:

x=-1

Step-by-step explanation:

i took the test

Answer:

323

Step-by-step explanation:

Answer: 3x - 6^4

Step-by-step explanation:

I got the answer right

ANSWER:

A

Step -by -step verification:

Total number of female students that play instruments

Total number of students =43/140

If a musician is selected at random, the probability that the individual is a female student is; 15/28

We are given;

Total Number of High school students surveyed = 140

Number of males that play instruments = 24

Number of males that don't play instruments = 41

Number of females that play instruments = 43

Number of females that don't play instruments = 32

Thus, If a musician is selected at random, the probability that the individual is a female student is;

P(Female Student) = (43 + 32)/140 = 75/140 = 15/28

Read more about probability at; https://brainly.com/question/251701

#SPJ2

Answer:

Step-by-step explanation:

As all are similar polygons , corresponding sides will be in proportion.

[tex]1)\frac{9}{12} =\frac{3}{4}\\\\[/tex]

Scale factor = 3 : 4

[tex]2)\frac{12}{15}=\frac{4}{5}\\\\[/tex]

Scale factor = 4 : 5

[tex]3) \frac{10}{25}=\frac{2}{5}\\[/tex]

Scale factor = 2:5

4)

[tex]\frac{8}{16}=\frac{1}{2}[/tex]

Scale factor = 1 : 2

Answer:

720 inches cubed

hope this helps <3

Answer:

A, is the answer.

Step-by-step explanation:

If you take two points and then find the slope between them you'll find that it is 1.5.

You could also make a T-chart or plug in the x coordinates into each possible equation and see which one matches the corresponding y coordinate.

Answer:

A

Step-by-step explanation:

So X equals 16

Look at the attached picture

Hope it will help you

Good luck on your assignment

Answer:

[tex]x = 16[/tex]

Step-by-step explanation:

[tex]148 + 2x = 180 \\ 2x = 180 - 148 \\ 2x = 32 \\ \frac{2x}{2} = \frac{32}{2} \\ x = 16[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

-1/6 for the number 6 and 2/3 for -3/2

Step-by-step explanation:

You have to do the reciprocal, or just swap the numerator and denominator. but if the parallel is positive the reciprocal becomes a negative. If the parallel is negative, then the reciprocal is positive.

Glad I could help!

Answer:

Frequency density is found when we divide the class width being the days of the week = 7    So that when we see 6 emails its divided by 7 =  6/7 0.857142857 as density     59/7 = 8.42857143 and 55/7 =7.85714286  and 106/7 = 15.1428571   and 84/7 = 12  and 86/7 = 12.285714  and 96/7 =13.7142857   this shows us we need to draw 16 bars up and 7 bars across - The bars across (x line) can be days of the week and the bars going up (y line) an be number of emails if 16 is ore than 106/7  then  16 squares > 106/7 then 15 < 106/7  So we ensure its a proportion of 15.143 and not more than that-   and not less than 15.142  for day 4 = 106 emails

Answer:

1) b=2 [tex]\sqrt{2}[/tex]  a= 8  2) x=y=  2[tex]\sqrt{2}[/tex]

Step-by-step explanation:

1) since the triangle is isosceles, b=2[tex]\sqrt{2}[/tex] and a= 2[tex]\sqrt{2}[/tex]*[tex]\sqrt{2}[/tex] which is 8

2) x and y equal eachother and is 4/[tex]\sqrt{2}[/tex] which is 2[tex]\sqrt{2}[/tex]

Answer:

The first one.  -4<=x<2

Step-by-step explanation:

PLEASE HELP ASAP!! I will give brainliest!!!!And 25 points!!!!

Answer:

c. 10

Step-by-step explanation:

its 10 spaces away

Answer:

C                   69 gooba

Step-by-step explanation:

Answer:

113.04

Hope this helps!

Answer:

113.04

Step-by-step explanation:

So in order to get area you gotta do R times R times Pie

So then,

You do 6 times 6,

and get 36,

Then you times 36 by 3.14 estimated,

Which gets you 113.04

Answer:

25%

Step-by-step explanation:

2 donuts are 1/4 of all of the donuts so that is 25%

Answer:

decrease by 50%

Step-by-step explanation:

[tex]\frac{0.4x}{0.8y} =\frac{x}{2y}[/tex]      

Decreased by 60% = (100%-60%)x = 0.4x.

Decreased by 20% = (100%-20%)x = 0.8x.

[tex]\frac{x}{y}[/tex] initial fraction, and we can see that denominator will increase 2 times, so fraction will decrease 2 times, or decrease by 50%.

Step-by-step explanation:

You will have to use pythagorean theorem

18^2+26^2=x^2

324+676=1000

Then sqaure root of 1000 is 31.623.

Answer:

A cup chocolate chips weighs about 9 ounces.

=> 3 cups of chocolate chips weigh about 9 x 3 = 27 ounces.

=> 3/4 cup of chocolate chips weigh about 9 x 3/4 = 27/4 = 6.75 ounces.

=> 3 and 3/4 cups of chocolate chips weigh about 27 + 6.75 = 33.75 ounces.

Hope this helps!

:)

Answer: 77 + (3 x 4) - (27+56782) +23459 x 21=92,784,273

Step-by-step explanation: hope that solves the problem you are looking for. you are welcome. hope that you get smarter because of me.

Answer:

The Triangle Is A Right Triangle Because 5^2 + 12^2 = 13^2.

Step-by-step explanation:

5^2 = 25. 12^2 = 144. With the Pythagorean theorem, (a^2 + b^2 = c^2), 5 is a, 12 is b, and 13 is c.

25 + 144 = 169.

13 ^ 2 = 169.

Since a^2 + b^2 = c^2 is true, the triangle is a right triangle.

Given:

Sides of triangle= 5cm, 13cm and 12cm

To find: Whether a triangle is a right angled triangle.

This can be solved by applying Pythagorean theorem:

According to the Pythagoras theorem, the square of the hypotenuse is equal to the sum of the squares of the other two sides of a triangle.

[tex]H^2=P^2+B^2[/tex]

where,

H= Hypotenuse

P= Perpendicular

B=Base

Applying given values in the formula:

[tex]H^2=P^2+B^2\\\\13^2=5^2+12^2\\\\169=25+144\\\\169=169[/tex]

Since, R.H.S= L.H.S

Thus, we can say that this triangle is a right angled triangle.

Learn more:

brainly.com/question/343682

Answer:

- 91 and 14.6

Step-by-step explanation:

Given a complex number z = a + bi

Then a is the real part and b the imaginary part

Given

z = - 91 + 14.6i , then

- 91 is the real part and 14.6 the imaginary part

Answer:

Hello There the Correct answer is 20% start off by finding 10% of $14. in order to find 10%, divide it by 70 which gives 2. you now need to make the 30% to add to the 70%, by timesing the 2 by 3to give 6. now all you need to do it add the 6 to 14 to make 20!

so your answer is $20

Hope it helps!

From ItsNobody

Answer:

Joe paid 14.00 for a board game.

This is 70% of the original price X (70/100 of original price).

We have the ratio: 14/X = 70/100

=> The original price: X = 14 x 100/70 = 20

Hope this helps!

:)

Answer:

17

Step-by-step explanation:

Answer:

Abu is 18 years old

Step-by-step explanation: This is because 18x2/3 is 12, Musa's age, and 18+12=30.