The number of days each licensed driver in Marion County uses a commuter rail line annually is normally distributed with mean 66 and standard deviation 21. How many days must a driver use a commuter rail line annually to be in the top 5% of rail users? Round to the nearest integer.

Answers

Answer 1

Answer:

31.5 days

Step-by-step explanation:

We.solve using z score formula

z-score is is z = (x-μ)/σ,

where x is the raw score

μ is the population mean

σ is the population standard deviation.

The 5th percentile z score = -1.645

Mean = 66

Standard deviation = 21

Hence:

-1.645 = x - 66/21

-1.645 × 21 = x - 66

-34.545 = x - 66

-34.545 + 66 = x

x = 31.455 days

Approximately to the nearest round integer

= 31.5 days

Therefore, driver use a commuter rail line 31.5 days annually to be in the top 5% of rail users


Related Questions

what graph has slope that best represents this rate

Answers

I think it A is the answer

5(x-9)+3=5x-42
Help pls

Answers

Answer: EZ BRUH

Step-by-step explanation:here's da answer 210

Answer:

All real numbers

Step-by-step explanation:

1.) Distribute the 5 on the left side of the equation

5x-45+3= 5x-42

2.) Add the -45 and 3

5x-42=5x-42

3.) Add -42 to one side

5x=5x

4.) Subtract 5x

0x=0

All real numbers

What is the slope of the line that passes through the points (1,-1) and (-2, 25 points
8)? *
-1/3
-3
-9

Answers

Answer:

Your answer is -3 happy to help :)))

8. Choose the graph that represents the equation y = -x + 4 + 1.

Answers

Answer:

where r the graphs i can not help if u don't put the graphs

Step-by-step explanation:

the difference between 7 and -15 the translation is

Answers

Answer:

22

Step-by-step explanation:

Answer: one is negative and one is positive

Step-by-step explanation:

Help plz plz plz I need it ASAP

Answers

Answer:

The y-value is 3

Step-by-step explanation:

I hope this helps

What is the slope of the line that passes through the points (5,0) and (-3,1)? Write your assignment and simplest form.

Answers

m = (y2-y1)/(x2-x1)

m = (1-0)/(-3-5)

m = 1/-8

Retake:will give brainliest

Answers

Answer:

5

Step-by-step explanation:

i need help with this ​

Answers

I’m pretty sure this is correct.

3/4 + (1/3 divided by 1/6) - ( -1/2)

Answers

Answer:

k knkjj6879

Step-by-step explanation:

797990-988078i9

Answer:

3 1/4

Step-by-step explanation:

3/4 + (1/3÷1/6) - (-1/2)

3/4 + (6/3) - (-1/2)

3/4 + 2 + 1/2

3/4 + 8/4 + 2/4

13/4

3 1/4

Y=-1/2x+1 what is the slope

Answers

The slope is -1/2. When it’s in the equation like that, the slope is always the number that has the letter X next to it.

Hello there! :)

y=-1/2x+1

The slope is -1/2.

Remember y=mx+b (slope-intercept form)

m is the slope (-1/2)

b is the y-intercept (1)

Hope this helps!

~Just a determined gal

#CarryOnLearning

[tex]MysteriousNature[/tex]

what are 245 times 1/10

Answers

Answer:

24.5

Step-by-step explanation:

multiplying by 1/10 is the same as multiplying by 1 and then deviding by 10, so 245/10=24.5

Which set of points is collinear? Please answer ASAP

{(4,2), (-2,-4), (0,-1)}

{(6,-9), (-1,-1), (2,3)}

{(0,-2), (-4,2),(-1,-1)}

{(-2,-8), (-1,-4), (3,9)}

Answers

Answer:

third one

Step-by-step explanation:

the slope is one that's why

How many feet does a wheel with a diameter of 12 inches travel after two revolutions

Answers

Using the circumference formula we know that the wheel of a diameter 12 in will cover 6.26 ft.

What is the Circumference of the circle?

The circumference of a circle or ellipse in geometry is its perimeter.

That is, if the circle were opened up and straightened out to a line segment, the circumference would be the length of the arc.

The curve length around any closed figure is more often referred to as the perimeter.

Now, we know that the radius is 12/2 = 6 in.

Then circumference will be:

= 2πr

= 2π6

= 37.6

= 37.6 * 2

= 75.2 in

We know that:
1 inch = 0.083 ft

75.2 inch = 6.26 ft

Therefore, using the circumference formula we know that the wheel of the diameter 12 in will cover 6.26 ft.

Know more about the Circumference here:

https://brainly.com/question/20489969

#SPJ1

y=-5/2x-5
find slope plz

Answers

Answer:

-5/2

Step-by-step explanation:

this is in the form y = mx+b

m is the slope, and b is the y-intercept

so m is -5/2

slope = -5/2

X= -2 (This is the answer for finding the x not the y so sorry if u need to find out what the y was)

PLEASE I NEED HELP!!

Answers

I would but I can barely see the numbers on the graph, sorry!!

SHOE COLLECTION: Marquise, Bron'Tavious, and JayDarius each have a shoe collection of Nike Air Vapor Max shoes. Marquise has two times as many pairs of shoes than Bron'Tavious and JayDarius have fifteen more pairs of shoes than Bron'Tavious. All together they have ninety-five pairs of shoes. (a) How many pairs of shoes Marquis have? (b) How many pairs of shoes does Bron'Tavious have? (c) How many pairs of shoes does JayDarius have? Provide evidence and how you got your answer.​

Answers

Answer:

(a) The number of shoes that Marquise has is 40 pairs of shoes

(b) The number of pairs of shoes that Bron'Tavious has is 20 pairs of shoes

(c) The number of pairs of shoes that JayDarius has is 35 pairs of shoes

Step-by-step explanation:

The given information are;

The number of shoes that Marquise has = 2 × The number of pairs of shoes that Bron'Tavious

The number of pairs of shoes that JayDarius has = The number of pairs of shoes that Bron'Tavious + 15

The total number of pairs of shoes they have all together = 95 pairs of shoes

Let the number of pairs of shoes that Bron'Tavious has = X. Therefore, we have;

The number of shoes that Marquise has = 2 × X

The number of pairs of shoes that JayDarius has = X + 15

The total number of pairs of shoes they have all together = X + X + 15 + 2 × X = 95

X + X + 15 + 2 × X = 95

4 × X + 15 = 95

4 × X = 95 - 15 = 80

X = 80/4 = 20

∴ X = 20

(a) The number of shoes that Marquise has = 2 × X = 2 × 20 = 40

The number of shoes that Marquise has = 40 pairs of shoes

(b) The number of pairs of shoes that Bron'Tavious has = X = 20

The number of pairs of shoes that Bron'Tavious has = 20 pairs of shoes

(c) The number of pairs of shoes that JayDarius has = X + 15 = 20 + 15 = 35

The number of pairs of shoes that JayDarius has = 35 pairs of shoes.

1.The ratio of boys to girls in a homeroom at berkmar middle is 3:4 if there are 12 boys how many girls are there in the homeroom ? 2.The total number of students enrolled at berkmar middle is 1,400 students if the ratio of boys to girls is also 3 to 4 for the school how many students are boys are boys and how many students are girls at berkmar school a800boys,650girls b.467boys,350girls c.600boys ,800girls d.467boys,933girls

Answers

Answer:

None of the options are correct, the correct answer is 1,050 boys and 350 girls.

Step-by-step explanation:

A ratio of 3:4 can be turned into a percentage by dividing 3 by 4. This would give us 0.75 or 75%. This means that the remaining 25% (100-75 = 25) are girls in this ratio. If there are 12 boys we can find the total amount by dividing 12 by 0.75 and then multiplying that answer by 0.25 (25%) in order to find the amount of girls in that ratio, like so...

12 * 0.75 = 16 total

16 * 0.25 = 4 girls

If there are a total of 1,400 students we can find how many are boys and how many are girls by simply multiplying by the percentages.

1,400 * 0.75 = 1,050 boys

1,400 * 0.25 = 350 girls.

Apparently, none of the options are correct, the correct answer is 1,050 boys and 350 girls.

Answer:

iuvvvvvvvvvvvvvv

Step-by-step explanation:

uyfvfv

. On a family road trip, Mr. Peters travels 130miles in 2 hours. At this rate, how many miles will he travel in 30 minutes? *

Answers

Answer:

First, we will divide 130/2 = 65. This is how much miles he travels in 1 hour. Then, we divide 65/ 2 = 32.5 or 32. Mr. Peters travel 32.5 milies or you can say it as 32.

I hope this helps!

Step-by-step explanation:

5x² + 2 = 12 square roots

Answers

I believe it’s 27 square root sorry if I’m wrong! :/

i need answer and step by step please help :(

Answers

Answer:

hmm Calculator

Step-by-step explanation:

Easily one of the best ways instead of brainly

262, because 6.55 an hour for 40 hours, (6.55x40) is 262$

In 2 1/2 hours a jet flew 975 miles. What was the jet's average speed?

Answers

The answer is: 390 Miles Per Hour
390 miles an hour is the speed of the hey

Are the following lines parallel, perpendicular, or neither? -4x-5y=-4 and 10x-8y=-1

Answers

Answer:

perpendicular

They are neither parallel nor perpendicular as they have different slopes.

First line equation in form of y = mx +c is:

y = (4x-4)/5

and second line equation is :

y= -((10x+1)/8)

This is a test so it would be great if you could help! I suck at math lol

Answers

Answer:

3/2

Step-by-step explanation:

Order y pairs, you could do x pair if u wanted.

(9,3,3)

(6,2,2)

If u divided 9/6 it gives you 3/2 same with the other two pairs.

Use the figure to find a+b+d + e
A. 330°
B. 325°
C. 290°
D. 300°

Answers

[tex]a + b + 35 + d + e = 360[/tex]

Subtract the sides of the equation minus 35

[tex]a + b + d + e = 360 - 35[/tex]

[tex]a + b + d + e = 325[/tex]

So the correct answer is : (( B. 325° ))

_________________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

Answer:

(c) 290

Step-by-step explanation:

The maximum speed of a car on a trip is 60 mph right and solve an inequality that represents the number of hours it takes a car to travel 300 miles

Answers

Answer: 5 hours

Step-by-step explanation:

It would take five hours for the car to drive 300 miles if it goes at 60 mph.

Solve.
5
2x+
1
2x=27
1
2+
7
2x
The value of x is

Answers

Answer:

x=−339

Step-by-step explanation:

i think

How do I write 5/3x+y=8 in standard form

Answers

Answer:

5x+3y+24

Step-by-step explanation:

H E L P
On a diagram with a scale of 1 in.= 4 yd, the width of an object is 20in. If the scale of the diagram were in 1 inc.= 5 yd, what would be the width of the object?
A. 15 in.
B. 16 in.
C. 24 in.
D. 25 in.

Answers

D. 25in

EXPLANATION: 1:4 * 5= 1:20in
1:5 * 5= 1:25in

PLZZZ HELP WILL GIVE 10 POINTS

What is the distance between point A and point B? A number line ranging from -8 to 8 with point A at coordinate -6 and point B at coordinate 7 Enter your answer in the box. The distance between points A and B on the number line is ( ) units

Answers

Answer:

AB = 13 units

Step-by-step explanation:

From the figure attached,

A number line has been given ranging -8 to 8.

Two points A and B are at -6 and 7 respectively.

Distance between these points A and B = |B - A|

AB = |7 - (-6)|

AB = 13

Therefore, distance AB = 13 units will be the answer.

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