When Evelyn commutes to work, the amount of time it takes her to arrive is normally
distributed with a mean of 47 minutes and a standard deviation of 4.5 minutes. Using
the empirical rule, what percentage of her commutes will be between 42.5 and 51.5
minutes?

Answers

Answer 1
23 minutes thank you give me brainless

Related Questions

what is the slope of this equation? 6x+3y=24

Answers

Answer:

Slope of the given equation is

M = 8

An unbalanced force causes a change in _________________ or _________________________.

50 POINTS!


A balanced force ____________________________________. It has a net force of _______________.

The UNIT for force is the _______________________________. It is abbreviated ________.

Answers

Answer:

What?

Step-by-step explanation:

If two individual forces are of equal magnitude and opposite direction, then the forces are said to be balanced. An object is said to be acted upon by an unbalanced force only when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction. I hope it helps !

A local school donated canned goods to help the community. Cans were packed into boxes each weighing 16.4 pounds. The volunteers packed 9 boxes. How many total pounds of food did they collect? A. 97.6 B. 147.6 C. 976 D. 1,476

Answers

Answer:

147.6 pounds of food

Step-by-step explanation:

Each box weighed 16.4pounds, if the volunteers packed 9 boxes, we need to calculate the total pounds of food collected. Using the equality postulate;

1 box = 16.4 pounds

9 boxes = x pounds of food

Cross multiply;

1 * x = 9 * 16.4

x = 147.6 pounds of food

Hence the volunteers collected 147.6 total pounds of food

3 3/8 divided by 9=?
Help! Please! Thank you for your time!

Answers

Answer:

0.375

Step-by-step explanation:

Eight bottles of soda and four bags of chips cost $16. Six bottles of soda and 7 bags of chips cost $14. How much does a bottle of soda cost? How much does a bag of chips cost?

Answers

Answer: soda 1.75 dollars and chips is 0.50 dollars

Step-by-step explanation:you have to work out the question like a simultaneous equation so key s=soda and c=chips

8s+4c=16

6s+7c=14 make chips equal

56s+28c=112

24s+28c=56 Take the equations away

32s=56

S=56\32

S=7/4

S=1.75 sub that answer in the first equation

8*1.75=14

14+4c=16

4c=2

C=0.5

What is the area of △MNP?
A. 40 m2
B. 60 m2
C. 68 m2
D. 127.5 m2

Answers

answer is B. 60 m2

Step-by-step explanation:

17²=15²+MP²

289=225+MP²

289-225=64

So... MP²=64.... MP=8

8×15= 120

120÷2=60

Adam currently runs about 40 miles per week, and he wants to increase his weekly mileage by 10%. How many miles will Adam run per week?

Answers

it would be 50miles i think or it would be 44

need help asap please!!

Answers

Answer:

Step-by-step explanation:

Your worth it love u

The copy machine in the teacher’s lounge can print 3 single-sided pages in 16 seconds. Mr. Adams has 25 students in his class, and has to give three one-page quizzes on Friday. How long will it take the machine to print all of Mr. Adams’ copies if he needs to print one copy of each quiz for every student?

Answers

Answer:

150 seconds

Step-by-step explanation:

What the slope of (0,5) and (8,2)

Answers

The answer is -3/8. the equation for that is m= y2-y1/x2-x1

Whats 2/3 divided by 4

Answers

Answer:

(2/3) / 4 = 1/6 or 0.16666

Step-by-step explanation:

To celebrate the first day of school, Reagan brought in a tray of caramel brownies and walnut brownies. The tray had a total of 20 brownies, of which 10% were caramel. How many caramel brownies did Reagan bring?

Answers

Answer:

2 were caramel

Step-by-step explanation:

Which expression is not equivalent to the other three?
O 2x + 2+ 2x + 3x - 8
O 4 + 7x - 2
O-2 + 5x + 2x - 4
O ex-X-6

Answers

9514 1404 393

Answer:

  B.  4 +7x -2

Step-by-step explanation:

The simplified values of the expressions are ...

7x -67x +27x -67x -6

The second expression listed is not equivalent to the others.

Answer:

It's B. 4 + 7x - 2

Best of luck love

Help please geometry, show all work!! Thanks :-)

Answers

Answer:

t = 18

Step-by-step explanation:

thank me later

Hey uhm.. im not super good at math so i need help with this : 0.45/4.2 = x/14 solve for x

Answers

Answer:

x= 1.5

Step-by-step explanation:

The subtotal for a TV was $1,029.99. What does that mean?

Answers

that’s the price of the tv without tax

I need help with this problem

Answers

Answer:

in this case you can use protector also but

there is another way

Step-by-step explanation:

as we know sum of a triangle is 180 degree

so let's D= 2x,x

35+x+2x=180

3x+35=180

3x=180-35

3x=145

x=145÷3

x =46.06

may someone help me?

Rob sells electronics and earns $625 per week, plus 12% of his sales. Last week, he sold $3250 worth of electronics. What was his total earnings for last week?

Answers

Answer:

$1,015

Step-by-step explanation:

Given that:

Weekly earning = $625

Commission = 12% of sales

sales made last week = $3250

Last week earning = weekly earning + commision on sale

Commission on sale = 12% of sales

Commission on sale = (0.12 * 3250) = $390

Last week earning = weekly earning + commision on sale

Last week earning = $625 + $390 = $1,015

Plz hurry I have 10:00 minutes. Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the
equation –2x+3-4-3 x2
*x=1
07-13
07-
3

Answers

Answer:

the first one

Step-by-step explanation: i think .   pls don't blame me if you get it wrong im just trying to help

Answer:

=  -8x-1

Step-by-step explanation:Let's simplify step-by-step.

−2x+3−4−3x(2)

=−2x+3+−4+−6x

Combine Like Terms:

=−2x+3+−4+−6x

=(−2x+−6x)+(3+−4)

=−8x+−1

Answer:

=−8x−1

-2( x - 3 ) = 8x -3( 5 + x )
find the value of x

Answers

Answer:

0.45

Step-by-step explanation:

ignore the top but please help. will ignore brainliest

Answers

Answer:

the in's are 6 7 and the outs are 12 and 0.2

Step-by-step explanation:

a boat travels 36 miles in one hour. what is it’s speed in miles per minute

Answers

Answer:

What they said

Step-by-step explanation:

Marley used 7 cups of water to make 4 loaves of French bread. What equation can be used to model the total cups of water needed y for making x loaves of French bread? Write the equation in the form y =kx .

Answers

Answer:

[tex]\displaystyle y=\frac{7}{4}.x[/tex]

Step-by-step explanation:

Proportional Relationship

It's the type of relationships between two variables where their ratios are equivalent.

In a proportional relationship, one variable is always a constant value by the other. That constant is known as the constant of proportionality.

A proportional relationship between the variables x and y is written as:

y=k.x

For this problem, y represents the cups of water needed for making x loaves of French bread.

We know Marley used y=7 cups of water to make x=4 loaves of French bread. Substituting into the equation:

7=k.4

Solving for k:

[tex]\displaystyle k=\frac{7}{4}[/tex]

The equation to model the problem is:

[tex]\mathbf{\displaystyle y=\frac{7}{4}.x}[/tex]

What is the perimeter of the triangle?
2(x+3)
6x
4(x – 10)

Answers

Answer:

Step-by-step explanation:

12x-34

Add all the sides together

2(x+3) + 6x + 4(x – 10)

distribute:

2x+6 + 6x + 4x-40

and add:

12x-34

Maura is going on a plane. She can't have a carry-on backpack that weighs more than 10 pounds. She weighed the items she wants to pack on a sensitive scale: book: 5.142 pounds, jacket: 3.6 pounds, backpack: 1.28 pounds. What is the total weight of these items? If all of these items are in her backpack, can she take all of these things?

Answers

Answer:

2.098 pounds total these pounds

if there perimeters are the same 8x (2) = (4x+10) 14

Answers

Answer:252

Step by step explanation:

db

Write the statement "All right angles are congruent" in if-then form.

Answers

Answer:

If all right angles equal 90 degrees then all right angles are congruent.

if the angles are all right, then they are all congruent

The price of apples is $3.60 for 3 pounds. Write the price as a unit rate.

Answers

Answer:

B

Step-by-step explanation:

Answer:

B.

Step-by-step explanation:

A school assembly had 25 students in attendance, and 20% of them were first-graders. How many first-graders were at the assembly?

Answers

Answer:

5

Step-by-step explanation:

20%=0.2

25 x 0.2 = 5

The mean distance of Venus from the sun is about 1.08 x 10^8 km. Write that number in standard form​

Answers

Answer:

It is 108,000,000

Step-by-step explanation:

You move the decimal 8 times to the right since it's a positive number!

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