A study of commuting times reports the travel times to work of a random sample of 40 employed adults in New York State. The mean is = 31.25 minutes, and the standard deviation is sx = 21.88 minutes.

Answers

Answer 1

Answer:

Let me give you an example of a segment addition problem that uses three points that asks the student to solve for x but has a solution x = 20.

First, I assumed values for each x, y and z and then manipulated their coefficients to get the total at the end of each equation.

20 + 10 +30 = 60

40 + 0 + 40 = 80

40 + 10 = 50

Then exchangeing these numbers into values and we have the following equation.

x + 2y + 3z = 60

2x + 4z = 80

2x + z = 50

If you will solve them manually by substituting their variables into these equations, you can get

x = 20

y = 5

z = 10

Step-by-step explanation:


Related Questions

HELP PLZ


I NEED HELP ASAP!! I need to get my grade up!

Answers

Answer:

40 its the correct answer

PLZ HELP RN ASAP THX

Answers

Answer:

x is equal to 61

y is equal to 29

Evaluate[tex]10^{6}[/tex] 10^{3}121^{1}

Answers

121,000,000,000
this is because:
10^6= 1,000,000
10^3= 1,000
121^1= 121

Find the measure of A. No links!!!!

Answers

Answer:

A equals 105 degrees, option 2

Step-by-step explanation:

7x + 5x gives 180. 7x and 5x lie on a line so they form a linear pair. Their sum equals 180 degrees:-

7x + 5x = 180

12x = 180

x = [tex]\frac{180}{12}[/tex]

x = 15

Since x is 15, we can find the lengths of 7x and 5x.

7x would be 7 x 15 = 105

5x would be 5 x 15 = 75

'A' is equal to 7x since they are vertically opposite angles.

Since 7x is 105 degrees, then A would be 105 degrees as well.

868,000,000 in scientific notation

Answers

Answer:

8.68 × 10^8

Step-by-step explanation:

--------------------

Answer:

8.68x10^8

Step-by-step explanation:

move 8 times to the left

2. The two figures are similar. Complete sentences

a) Write the similarity statement.
b) Is the image of the dilation a reduction or an enlargement of the original figure? Explain.
c) What is the scale factor? Explain.

Answers

the answer is a because i’m smart ………………

Miss Torres is mailing a package that way it's 12.5 pounds the post office charges by the ounce to mail a package how much does the package weight in ounces

Answers

Answer: 200 ounces

Step-by-step explanation:

One pound is the equivalent of 16 ounces.

To convert 12.5 pounds to ounces therefore, one needs to multiply 12.5 by 16 ounces:

= 12.5 * 16

= 200 ounces

The package to be mailed weighs 200 ounces when converted from pounds.  

Answer:

200 ounces

Step-by-step explanation:

we need to convert 12.5 pounds to ounces

1 pound = 16 ounces

16 x 12.5 = 200 ounces

Who is correct?
PLease answer, ASAP!!! pls (:

Answers

Connor is correct!! It’s a 50/50 chance for both

Answer:

I would say Conner.

Step-by-step explanation:

lorde help me
surface area 10 points

Answers

Answer:

1560 in^2

Step-by-step explanation:

10x22 = 220 bottom rectangle

1/2(10)(24) = 120 side triangle

22x26 = 572 front rectangle

24x22 = 528 back rectangle

220+120+120-572+528= 1560

The table shows the number of students in a class who play on a school team and/or are members of a school club:

Play on a School Team Do Not Play
on a School Team Total
Club Member 11 ? 16
Not a Club Member 11 10 21
Total 22 15 37

What is the missing number in the table? (4 points)

a
25

b
5

c
27

d
3

Answers

Answer:

the correct answer should be

b5

Help me please I’ll give brainliest

Answers

Answer:

30 degree

Step-by-step explanation:

acb is 60 equilateral triangle

then dac angle is 120 double of centre angle

triangle dac is isoceles so 2 into angle acd=180-120

then acd =30

PLEASE HELP. Will give brainliest.

Answers

Answer:

[tex]true \: \\ {x}^{2} - 14x + 49 = {(x - 7)}^{2} [/tex]

Answer:

true

Step-by-step explanation:

HEEEEELLLLLLLPPPP WITHHHHHH MATHHHHH

Answers

Answer:

41 = 24 [Vertically opposite angle]

<1 = 25 [Corresponding angle]

41 = 28 [Alternate exterior angle]

So, 24, 25 and 28 are congruent to <1.

HELPPP PLZZZZ ASAP IS PLEASEEE DONT SEND A FILE AT ALL

Answers

Answer:

3 now okay i help you now Happy now happy

Solve for x, and JUSTIFY your answer

Answers

Answer:

60

Step-by-step explanation:

every angle is the same and 1/3 of 180 is 60

What is the value of x in this equation?
-6x=72

Answers

Answer:

Step-by-step explanation:

-12

[tex]\huge\text{Hey there!}[/tex]

[tex]\large\textsf{-6x = 72}\\\\\huge\text{\underline{\underline {DIVIDE -6 to BOTH SIDES}}}\\\\\large\dfrac{-6\mathsf{x}}{-6} = \dfrac{72}{-6}}\\\\\large\textsf{CANCEL out: }\large\dfrac{6}{6}\large\text{ because that gives you 1}\\\\\large\text{KEEP: }\large\dfrac{72}{-6}\large\text{ because that gives you the answer for x}\\\\\large\text{NEW EQUATION: x = }\large\dfrac{72}{-6}\\\\\large\text{SIMPLIFY ABOVE}\\\\\boxed{\boxed{\huge\textsf{Therefore, your answer is: x = -12}}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

can someone please solve this for me? (steps included)

Answers

Answer:

Y= -4/5

Step-by-step explanation:

I hope this helps!

EASY MATH PLEASE HELP

NO LINKS PLEASE

EXPLANATION REQUIRED

I WILL GIVE BRAINLIEST

: ) HINT: THE ANSWER IS NOT D

A child's sandbox is 6 ft. wide, 3 ft. long, and 2 ft. deep. The child's mother fills the sandbox so that it is 1 1/2 ft. deep. What is the volume of the sandbox?


A) 27 cubic feet

B) 7 1/2 cubic feet

C) 36 cubic feet

D) 20 cubic feet

Answers

C) 36 cubic feet
to find volume, it is length x width x height
so, 3 x 6 x 2 =36

In a game of chance, players spin the pointer of a spinner with six equal-sized sections.
The numbers are 1 4 4 1 2 4 1 Which outcome has a frequency closest to its expected frequency?

Answer choices
1
2
3
4
Hurry

Answers

Answer:

1 I think

Step-by-step explanation:

1 has the most spots on the spinner

What is the surface area of the rectangular prism shown by the net?

Answers

Answer:

736 cm^2.

Step-by-step explanation:

Adding the individual rectangles:

Surface area = 8*10 + 8*10 + 8*16 + 8*16 + 10*16 + 10*16

= 160 + 256 + 320

= 736.

PLEASE HELP WITH THIS ILL GIVE BRAINLIEST

Answers

Answer:

[tex]\text{a. }x=7, x=-7, \\\text{b. }x=16, x=-16, \\\text{c. }x=3, x=-17, \\\text{d. }x=7, x=-7[/tex]

Step-by-step explanation:

For [tex]|x|=y[/tex], we have two cases:

[tex]\begin{cases}x=y, \\x=-y\end{cases}[/tex]

Using this, we can solve all four of the problems:

[tex]\text{a. }|x|=7,\\\begin{cases}x=7, \\x=-7\end{cases}[/tex]

[tex]\text{b. }|2x|=32,\\\begin{cases}x=16, \\x=-16\end{cases}[/tex]

[tex]\text{c. }|x+7|=10,\\\begin{cases}x+7=10, x=\boxed{3,} \\x+7=-10, x=\boxed{-17}\end{cases}[/tex]

[tex]\text{d. }5|x|=35,\\\begin{cases}x=7, \\x=-7\end{cases}[/tex]

Answer:

a) x = 7, x = - 7

b) x = 16, x = - 16

c) x = 3, x = - 17

d) x = 7, x = - 7

Step-by-step explanation:

When you have absolute value on a variable, the variable has two results.

Example:

lxl = 2

x = 2, or x = - 2

a. lxl = 7

x = 7, x = - 7

b. l2xl = 32

l2xl ÷ 2 = 32 ÷ 2

lxl = 16

x = 16, x = - 16

c. lx + 7l = 10

x + 7 = 10

x + 7 = - 10

x + 7 = 10

x + 7 - 7 = 10 - 7

x = 3

x + 7 = - 10

x + 7 - 7 = - 10 - 7

x = - 17

d. 5lxl = 35

5x = 35

5x = - 35

5x = 35

5x ÷ 5 = 35 ÷ 5

x = 7

5x = - 35

5x ÷ 5 = - 35 ÷ 5

x = - 7

Which point represents the quotient of 4+3i/-i

Answers

Answer: Point C.

Step-by-step explanation:

Point B represents the quotient of 4+3i/-i.

What is a complex number?

Complex numbers are the numbers that are expressed in the form of

a + ib where, a, b are real numbers and 'i' is an imaginary number called “iota”.

Given complex number

[tex]\frac{4+3i}{-i}[/tex]

= [tex]\frac{4+3i}{-i} \times \frac{i}{i}[/tex]

= [tex]\frac{4i+3i^{2} }{-i^{2} }[/tex]

= [tex]\frac{4i+3(-1) }{-(-1)}[/tex]

= [tex]4i-3[/tex]

= [tex]-3+4i[/tex]

Point B represents the quotient of 4+3i/-i.

Find out more information about complex number here

https://brainly.com/question/501218

#SPJ2

Please help!! Write a recursive rule

Answers

It is -9 bro ..............

BLANK + 308 + -126 = 450

Answers

Answer:

268

Step-by-step explanation:

Answer:

268

Step-by-step explanation:

 450

- 126

What is the minimum value?

Answers

Easy one....
58
There is no difficult explanation. It’s always the left end of the box and whisker plot.

The Constitutional Convention adopted the U.S. Constitution in its original form in 1787, and it went into effect immediately. True or false?

Answers

Answer:

False.

Explanation:

The Constitution did not go into effect the moment it was signed by the delegates. It needed to be approved by the people through the ratification process.

Answer:

GIMMIEEE BRAINLIST RIGHT NOWWW YOU FREAKING PUT HISTORY IN MATH

Step-by-step explanation:

Georgina likes to read during her summer break. The table below shows the number of pages in each book she read last summer and the number of pages in each book she read this summer.

Number of Pages Georgina Reads during the Summer

Last Summer

140

220

190

180

190

This Summer

150

170

150

190

180

What inference can someone draw about the data?
The books she read this summer had more pages, on average, than last summer.
The number of pages in each book varied more last summer than this summer.
Last summer, the average book had nearly twice the number of pages than the average book has this summer.
This summer, the number of pages in a book varied nearly twice as much as the number of pages in last summer's books

Answers

The correct answer would be:

B. The number of pages in each book varied more last summer than this summer.

Step-by-step explanation:

I was doing my test and this was the correct answer. Sorry if this is too late for you.! I hope you have a great day.

The inference that can be drawn from the data is the number of pages in each book varied more last summer than this summer.

How to measure variance in data?

Range can be used to measure variance in a data set. Range is the difference between the largest number and the smallest number. The larger the difference, the greater the variance.

Range= largest number - smallest number

Range of pages read this summer  = 180 - 150 = 30

Range of pages read last summer  =220 - 140 = 80

To learn more about variance, please check: https://brainly.com/question/5106089

PLEASE HELP. urgent. What is the answer? HELP please!

Answers

From the figure, we can notice that : Surface area of the pyramid is equal to Sum of the area of the square and Sum of the areas of 4 triangles.

We know that : Area of a square is given by : Side x Side

Given : Side of the square = 3 cm

⇒  Area of the square = 3 x 3 = 9 cm²

We know that : Area of the triangle = 1/2 x Base x Height

From the figure, We can notice that, Base of each triangle = 3 cm and height of the each triangle = 3 cm

⇒ Area of one triangle = 1/2 × 3 × 3 = 4.5 cm²

Surface area of the pyramid = Surface of the square + Surface area of the 4 triangles

⇒  Surface area of the pyramid = 9 cm² + 4(4.5) cm²

⇒  Surface area of the pyramid = 9 cm² + 18 cm² = 27 cm²

Answer : Surface area of the pyramid = 27 cm²

What is the correct way to read 8.72?
8 and 72 decimals
8 and 72 hundredths
8 and 72 tenths

Answers

Answer:

8 and 72 hundreths

Step-by-step explanation:

it's not the first one for sure

i think 8 and 72 hundreths?? i could be wrong

In the diagram shown overline AD and intersect at point E. overline AB and overline CD are parallel . Given the segment length shown in the picture, which of the following is the length overline AE

1) 11.25
2) 10.8
3) 10
4) 7.5

Answers

Answer:

11.25

Step-by-step explanation:

Since AB and CD  are parallel, ∠D is congruent to ∠A and ∠C is congruent to ∠B.  Therefore the two triangles are similar by the AA postulate.  Now, the corresponding sides are in proportion

Since AE ↔ DE and AB ↔ CD

So, AE/CD = AB/CD

AE/5 = 9/4

AE = 9(5)/4

     = 45/4  = 11.25

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