One thousand families were surveyed to
determine the distribution of families by size. The
results follow.
Family Size 2
3
4
5 6 7 8
Frequency
350
200 245 125
66
10
To the nearest percent, the probability that a given
family has 3 people is [? ]%.

One Thousand Families Were Surveyed Todetermine The Distribution Of Families By Size. Theresults Follow.Family

Answers

Answer 1

Answer:

Step-by-step explanation:

probability of an event: number of events that satisfy the criteria/ total number of events

number of events that satisfy the criteria (in this case the number of families with three people)= 200

total number of events= 1000

200/1000= 20%


Related Questions

How many pounds is a pepper?
I really need to know.

Answers

Answer:

4-5 ounces or 113-142 grams

Step-by-step explanation:

Triangles ABC has vertices A(1,-1) B(1,-5) and C(5,-5). A dilation with a scale factor of 0.25 and true center at (-3,3) is applied to the triangle. What are the coordinates of A’B’C’ in the dilated image?

Answers

Answer:

A'(-2, 2)B'(-2, 1)C'(-1, 1)

Step-by-step explanation:

For scale factor k and center of dilation (p, q), the transformation is ...

  (x, y) ⇒ (kx +(1-k)p, ky +(1-k)q)

For k=1/4 and (p, q) = (-3, 3), the coordinates are transformed to ...

  (x, y) ⇒ (1/4x -9/4, 1/4y +9/4)

Then the preimage points are dilated to ...

  A(1, -1) ⇒ A'(1/4 -9/4, -1/4 +9/4) = A'(-2, 2)

  B(1, -5) ⇒ B'(1/4 -9/4, -5/4 +9/4) = B'(-2, 1)

  C(5, -5) ⇒ C'(5/4 -9/4, -5/4 +9/4) = C'(-1, 1)

The graph shows which inequality? The vertex is (-4, -3)

Answers

Refer to the attachments.

100 PTS! HELP QUICK!!

Answers

We have 7x - 3x - 2 + 1 = 8 + x - 3 - 3x
<=> 4x - 1 = 5 - 2x
<=> 4x + 2x = 5 + 1
<=> 6x = 6
<=> x = 1

Ok done. Thank to me:>

Answer:

x=1

Step-by-step explanation:

what is coefficient of 10 and a constant of 5?

Answers

Answer:

10x+5.................



Please show work, I have no idea how to do this

Answers

Answer:

161 Remainder 4

Step-by-step explanation:

trust me on this

Answer:

_

161.2 BUT if with remainder it is 161 with a remainder of 4

Step-by-step explanation:

By the way the 2 is a repeating number so make sure to add that line at the top.

Kross bought 3 cans of paint. The total was less than $60. How much was each can?
inequalities btw!!​

Answers

1>$20 Is the answer for each can or 3>$60 for all three, un simplified.

Because we know they bought 3 can and the problem states it is LESS than $60.

Step-by-step explanation:

two equations if you want an inequality

y = -3x + 60

3x <= 60

graph it and you get x = 20 which is your answer

Solve the equations. 81^x^2=27^x

Answers

Answer:  81ײ=27×     x = 6

can someone help me please i need to get this right

Answers

Answer:

If there are 2 quarters for every 3 nickels,

then there are [tex]45*\frac{2}{3} =30[/tex] quarters.

If there are 2 dimes for every quarter,

then there are [tex]30*2=60[/tex] dimes.

If the number of pennies and nickels together are equal to the number of dimes, then there are [tex]60-45=15[/tex] pennies.

Keith spent $8 on tomatoes. How many did he get? ​

Answers

Answer:

its got 6

Step-by-step explanation:

I REALLY DONT KNOW

Answer:

Step-by-step explanation:

Let t be the unit cost of the tomatoes:  e. g., t = $1.25/lb.

If Keith spent $8 on tomatoes, the number he bought would then be

   $8

------------- = 6.4 lb of tomatoes

$1.25/lb

Of course he couldn't buy 0.4 tomato, but this method of calculating how many tomatoes he could buy theoreticallyl is correct.

The general formula would be

   $8

------------   and the end result would be the number of pounds Keith could

  $t / lb                               buy for $8.

i need help, I need to find the answer to my math problem, The question is "what is 2+2" im struggling, Please help ASAP. Thank You.

Answers

Answer:

4

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Thx for the points:) have a nice day

Kayla is serving vegetables at a soup kitchen. She has 18 carrot sticks and 12 baby potatoes that she
wants to divide evenly, with no food left over. What is the greatest number of plates Kayla can
prepare?

A:18
B:12
C:6
D:3

Answers

Answer:

C:6

Step-by-step explanation:

What is dehydration reaction ?

Answers

Answer:

In chemistry, a dehydration reaction, also known as Zimmer's Hydrogenesis, is a chemical reaction that involves the loss of water from the reacting molecule or ion. It is the most common type of condensation reaction. Dehydration reactions are common processes, the reverse of a hydration reaction.

Answer:

In chemistry, a dehydration reaction, also known as Zimmer's Hydrogenesis, is a chemical reaction that involves the loss of water from the reacting molecule or ion. It is the most common type of condensation reaction. Dehydration reactions are common processes, the reverse of a hydration reaction.

Step-by-step explanation:

Which is the simplified form of the expression ? A. B. C. D.

Answers

you don’t have a equation? I want to help you but with what?

The measure of ones angle of a triangle is 40. The measure of the other two angles are in a ratio of 3:4

Answers

Answer:

40, 60, 80

Step-by-step explanation:

angles are 40, 3x, 4x

40+ 3x + 4x = 180

40 + 7x = 180

7x = 180 - 40

7x = 140

x = 20

so the angles are 40, 60, 80

What are the values of the two angles?

Answers

Answer:

the angle 3x is 42 degrees, the angle 12x-30=138 degrees

Step-by-step explanation:

first, write an equation to represent the problem.

3x+(12x-30)=180

3x+12x=210

15x=210

x=14

Answer:

See below:

Step-by-step explanation:

Hello! My name is Galaxy and I will be helping you today. I hope you are having a nice day.

We can solve this problem in 2 steps, one being Theory and the second being Solving. I'll start off with Theory.

Theory

There are many theorems in Geometry, from the very simple to the very complex, you also have got the standard information that is usually known by many people.

In this case, we can see that it is a Supplementary Angle. We know that Supplementary Angles add up to 180 degrees and Complementary Angles add up to 90 degrees.

Now that we know that we can solve the problem.

Solving

So, we know that both angles have to add up to 180 degrees because the line is a straight line and that means that the angles on it must be 180 degrees.

Since we know this, we can state the following equation:

[tex]3x+12x-30=180[/tex]

We can say this due to the rule of Supplementary angles adding up to 180 degrees.

We can now use Algebra to simplify the equation:

[tex]3x+12x-30=180\\3x+12x=210\\15x=210\\x=14[/tex]

After doing algebra we can see that x s equal to 14 degrees, we can check our answers by putting that back into the equation.

[tex]3(14)+12(14)-30=180?\\42+168-30=180?\\210-30=180?\\180=180[/tex]

We have proven that our answer is correct, therefore the answer is [tex]x=14[/tex] degrees.

Cheers!

Which rate describes a unit rate of 6:1? A.) 12 tires for 3 cars B.) 30 miles for 5 hours C.) $35 for 5 set of markers D.) 45 miles in 9 hours​

Answers

Answer:

B.) 30 miles in 5 hours

Step-by-step explanation:

If you were to simplify all the ratios:

A) 12:3 divided by 3/3 is 4:1

B) 30:5 divided by 5/5 is 6:1

C) 35:5 divided by 5/5 is 7:1

D) 45:9 divided by 9/9 is 5:1

B is 6:1.

Please help me I do not understand what to do or what the answer is.

Answers

Answer:

the slope is

2/3x+2

Hope This Helps!!!

The slope of the line is 1/2

x-5/3=1 in the simplest form

Answers

[tex]\\ \sf\longmapsto x-5/3=1[/tex]

[tex]\\ \sf\longmapsto x=1+5/3[/tex]

[tex]\\ \sf\longmapsto x=3+5/3[/tex]

[tex]\\ \sf\longmapsto x=8/3[/tex]

Done

[tex]\sf \longmapsto \: x- \dfrac{5}{3} =1[/tex]

Simplify both sides of the equation

[tex]\sf \longmapsto \: x + \dfrac{ - 5}{ 3} = 1[/tex]

Add 5/3 to both sides

[tex]\sf \longmapsto x + \dfrac{ - 5}{3} + \dfrac{5}{3} = 1 + \dfrac{5}{3} [/tex]

[tex]\sf \longmapsto \: x = \dfrac{8}{3} [/tex]

[tex] \boxed{\sf { \red{ x = \dfrac{8}{3}}} }[/tex]

Find the size of angle XZY.
Give your answer to 1 decimal place,
Z
15 cm
Y
6 cm

Answers

Answer:

23.6 degrees

Step-by-step explanation:

A fruit basket contains oranges and grapefruits. 1/3 of oranges and 1/4 of the grapefruits were spoiled. You threw away 4 oranges and 7 grapefruits. How many pieces of fruit were in the basket before you threw out the spoiled ones?

Answers

Answer:

Below.

Step-by-step explanation:

1/3 is equivalent to 4 oranges so number of oranges = 3 * 4 = 12.

In the same way there are 7 * 4 = 28 grapefruit.

Total pieces of fruit = 12 + 28

= 40.

In a class of 35 student 19 takes history and 12 take Economic.if 5 take both subject how many take neither?

Answers

4
35 - 12-19 = 4
The 5 that take both are included in the 12 and 19.

Help?

I tried : 3b^2(2b-1)(2b+1) and it was wrong ):

Answers

Answer:

b(3b−10)(b−1)

Step-by-step explanation:

b(3b−10)(b−1)

Is the sequence geometric if so identify the common ratio 1/3, 2/9, 4/27, 8/81

Answers

Answer:

It is a geometric sequence and the common scale factor is [tex]\frac{2}{3}[/tex].

Step-by-step explanation:

In an arithmetic sequence, the difference between consecutive terms is always the same.

[tex]a_n=a_1+(n-1)d[/tex]

where aₙ is the nth term, a₁ is the first term, n is the index, and d is the common difference.

In a geometric sequence, each consecutive term was multiplied by some factor over the last.

[tex]a_n=ax^n^-^1[/tex]

where aₙ is the nth term, n is the index, and x is the scale factor.

In the given sequence, there is no common difference so it is not an arithmetic sequence. There is, however, a common scale factor applied to each consecutive term. Each term is multiplied by [tex]\frac{2}{3}[/tex] over the last.

The formula for this sequence would be:

[tex]a_n=a\frac{2}{3} ^{n-1}[/tex]

Answer:

r = [tex]\frac{2}{3}[/tex]

Step-by-step explanation:

If the sequence is geometric then there will be a common ratio r between consecutive terms , that is

r = a₂ ÷ a₁ = a₃ ÷ a₂ = a₄ ÷ a₃

Then

a₂ ÷ a₁ = [tex]\frac{2}{9}[/tex] ÷ [tex]\frac{1}{3}[/tex] = [tex]\frac{2}{9}[/tex] × 3 = [tex]\frac{2}{3}[/tex]

a₃ ÷ a₂ = [tex]\frac{4}{27}[/tex] ÷ [tex]\frac{2}{9}[/tex] = [tex]\frac{4}{27}[/tex] × [tex]\frac{9}{2}[/tex] = [tex]\frac{2}{3}[/tex]

a₄ ÷ a₃ = [tex]\frac{8}{81}[/tex] ÷ [tex]\frac{4}{27}[/tex] = [tex]\frac{8}{81}[/tex] × [tex]\frac{27}{4}[/tex] = [tex]\frac{2}{3}[/tex]

Then sequence is geometric with common ratio r = [tex]\frac{2}{3}[/tex]

This one as well, does anyone know the answer?

Answers

D is the answer to the question

Which sentence in this conclusion paragraph most clearly reminds the reader of the main points?

(1) As the evidence has shown, Faith is not only Goodman Brown's wife but also a symbol of his weakening faith. (2) He ignores her advice not to leave Salem, and he loses her in the woods, two events that show that his faith is fading
(3) Indeed, the ending of the story suggests that his faith is never restored.(4) In many ways, Goodman Brown's relationship with faith and Faith is a warning.


(A. Sentence 1
( B. Sentence 4
( C. Sentence 2
( D. Sentence 3

No links.​

Answers

Answer:

Step-by-step explanation:

I’m doing this too right now and can’t figure it out

The answer is A. Sentence 1

Given: 3x < 3.



Choose the solution set.

{x | x > 0}
{x | x < 0}
{x | x > 1}
{x | x < 1}
if you know this can you help ihave to have an 85 or above in math

Answers

Answer:

Divide 3 on both sides to get x < 1

Step-by-step explanation:

Hope this helps :)

i dont get it can u guy help me

Answers

Answer:

y = x + 8

Step-by-step explanation:

Let's build the equation:

There are 8 entries to start

y = 8

Adding 1 entry every day

y = x + 8

Pleaaas help meeeee pleasssss

Answers

Answer:

For the first row, it's 6, 12, 18, 24, 30

Second row: 4, 8, 12, 16, 20

Step-by-step explanation:

You're just counting by multiples of 6 for the first row and 4 for the second row. Denominator means the number underneath the fraction line

what is (x-2) (3x-4)=
a.3x² - 6x-8
b.3x² - 2x - 8
c.3x² + 10x + 8
d.3x² - 10x + 8

Answers

Answer:

D. 3x^2-10x+8

Step-by-step explanation:

[tex] \: \: \: \: \: [/tex]

D. 3x²- 10x + 8

hope it helps

refer to the attachment

[tex] \: \: \: \: \: [/tex]

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