Mathematics High School

The wait time for your local pizzeria to deliver food is normally distributed with µ = 40 minutes and σ = 3.5. What is the probability the next pizza delivery will take over 47 minutes? 2.15% 13.6% 2.28% 4.56%

Answers

Answer 1

Answer:

2.28%

Step-by-step explanation:

Given that:

µ = 40 minutes ; σ = 3.5.

x = > 47 minutes

Obtain the standardized score, Z

Zscore = (x - μ) / σ

P(x > 47) = (47 - 40) / 3.5

P(x > 47) = 7 / 3.5

P(x > 47) = 2

P(z > 2) = 0.02275

Hence, Probability that next pizza delivery takes over 47 minutes is 0.02275 = 2.275% = 2.28%

Answer 2

Final Answer is: 2.28%

I got it right when I did it! :)

Related Questions

8 folders cost $25.20. Write an equation to determine the cost of 3 folders.

Answers

Answer:

9 dollars and 45 cents

Step-by-step explanation:

First find the price of one folder.

$25.20 divided by 8 = $3.15

Then, multiply by 3.

$3.15 x 3 = $9.45

(I accidentally used 3.18 instead of 3.15. Someone corrected me.)

Answer:

25.20 divided by 8 = $3.15 x 3 = 9.45

Step-by-step explanation:

used a calculator, Hope this helps!

Sarah Scout Troops sold 80 boxes of shortbread cookies shortbread cookies made up 20% of the troops cookie sales how many boxes of cookies did Sarah Scout Troops sell in all ?​

Answers

Answer:

400

Step-by-step explanation:

20x5=100

80x5=400

Solve the square rove equation. 5-2Vx=11
(V=square root)

A.X=9,X=3
B.X=3
C.X=4
D.no solution

Answers

Plug the equation into Photomath it’ll tell you

if margrate has a basket of apples and pears. the number of apples equals three more than twice the number of pears. if there are 15 pieces ot fruite altogether how many apple and pears are there?​

Answers

Answer:

There are 6 pears and 9 apples.

Step-by-step explanation:

The equation would be a=3+2p

Translate algebraic expression into a word phrase: 2 ( 5 + t )

Answers

Answer:

two times the sum of a number and 5

Step-by-step explanation:

What is the value of n in the equation below?

StartFraction a Superscript n Over a cubed EndFraction = a Superscript 9

Answers

Answer:

ok ok it it 12

Step-by-step explanation:

stay safe 2021

Answer:

12

Step-by-step explanation:

Edge

pls help with mathhh !
thx !

Answers

Answer:

z = 65

Step-by-step explanation:

z + 81 + 34 = 180 (Sum of angles in a triangle is 180)

z + 115 = 180

z = 180 - 115

z = 65

z=65 i’m prtty sure..........

In a race , Ram covers 5 km in 20 min. How much distance will he cover in 100 min ?
A.25 km
B.26 km
C.35 km
D.40 km

Answers

Answer:

25 km

Step-by-step explanation:

1 km in 4m

so

100/4 = 25

25km

LOOK I really new help on this I will give u cash for it just give me your cash app or Venmo please help this is so many points

question
(60-5.8) ÷ 5 - 3^2
explain in an essay how to do this TY!!

Answers

Answer:

(60-5.8) ÷ 5 - 3² = 1.84 (approx)

Step-by-step explanation:

(60-5.8) ÷ 5 - 3²

First simplify the numbers inside the bracket.

(60-5.8) = 54.2

Now, the equation is in the form of,

54.2 ÷ 5 - 9

Put 54.2 ÷ 5 in a bracket for easy calculation.

(54.2 ÷ 5) - 9

Now simplify the numbers inside the bracket again, 54.2 ÷ 5 = 10.84

Subtract 9 from 10.84

10.84 - 9

You will now get the answer as,

1.84 (approx)

8. Is this number correctly written in scientific notation? 6.875 x 10 yes O no​

Answers

Answer:

No

Step-by-step explanation:

I believe you have to approximate or round it off.

that will be 6.9.

How do I change my level? It says I am in high school but I am only in middle school.

Answers

Answer:

go on your profile ---> edit profile----> preferences

Step-by-step explanation:

After paying $3 for a sandwhich, Trevor has $9. How much money did he have before buying the sandwitch

Answers

Answer:

12 dollars

Step-by-step explanation:

9+3

The answer is 12 because of the following reason
If you ad 3 to 9 dollars it will equal 12

Alisha received a fruit basket as a thank you gift and it had 18 tangerines, 4 pears, 2 plums, 6 bananas, and 3 peaches. Write the ratio of tangerines to pears and bananas in simplest form.

Answers

Answer:

9:14

Step-by-step explanation:

18:(18+4+6)

18:28

(18÷2);(28÷2)

9:14

What is the inverse of H(x)=1/2x+3

Answers

Answer:

x=-6

Step-by-step explanation:

Answer:

[tex]h^{-1}[/tex] (x) = 2x - 6

Step-by-step explanation:

let y = h(x) and rearrange making x the subject

y = [tex]\frac{1}{2}[/tex] x + 3 ( multiply through by 2 to clear the fraction )

2y = x + 6 ( subtract 6 from both sides )

2y - 6 = x

Change y back into terms of x with x = [tex]h^{-1}[/tex] (x)

[tex]h^{-1}[/tex] (x) = 2x - 6

Julie made five loaves of bread that had 1/4 cup of flour in each loaf. How many cups of flour were used in all?

Answers

Answer:

1 1/4 cups in total

Step-by-step explanation:

1 loaf-1/4 cup

2 loaf- 2/4 cup

3 loaf= 3/4 cup

4 loaf=4/4 cup

5 loafs in total equal: 1 1/4

Hope this helped!

Answer:

1 cup and 1/4

Step-by-step explanation:

one piece of bread is a quarter of a cup

and 4 quarters make a whole so- 4 loaves is one cup. then one loaf is equal to 1/4 so

4 and 1/4 cups

Write a function equation that represents a line that contains the two points (-3, 5) and (2, 10).

Answers

Step-by-step explanation:

1. 1st of all calculate the gradient

( - 3, 5) ( 2, 10)

Gradient = (10 - 5) / ( 2--3)

= 1

2. Then find the eq

Y = mx + c

Where m is the gradient

y= 1x + c

Now replace any 2 coordinates from above in the eq.

For ex I'm taking (2, 10)

Y = 1x + c

In the coordinate, x = 2 and y =10

By replacing this in the eq, I will find c

10 = 1(2) + c

2 + c = 10

c = 10 - 2

= 8

So the eq is y = x + 8 ⬅️

pls help asap no wrong answer pls

Answers

Answer:

answer is in the picture.

Answer:

1/2

Step-by-step explanation:

A bedroom door has an area of 21 square feet. Its perimeter is 20 feet. What are the
dimensions of the door?

Answers

Answer:

The door is 7 feet x 3 feet

Step-by-step explanation:

AREA: 7 x 3 = 21

PERIMITER: 7 + 7 + 3 + 3 = 20

A customer buys a refrigerator for $650 and must pay a sales tax of 6% of the cost. What is the total cost of the refrigerator?
A)$108.33
B)$589
C)$679
D)$689

Answers

Answer:

A

Step-by-step explanation:

because he is rich

HELP ME PLZ 20 POINTS AND BRAINLIEST

Answers

Answer:

3584

Step-by-step explanation:

find the value of the variable and the length of each chord.if necessary, round your answers to the nearest tenth

Answers

Answer:

X = 2.4

MN = 7

JL = 7.4

Step-by-step explanation:

someone plz answer this now

Answers

Answer:

x = 90°

Step-by-step explanation:

The diagonals of a rhombus are perpendicular bisectors of each other, so

x = 90°

What Expression goes with the Phrase: "The Product of 4 and the
difference of 10 and b."
A. 4(b-10)
b. 4x10 -b
C. 4b- 10
d. 4(10-b)

Answers

Answer:

the correct answer is 4(10 -b)

The sum of twice a number and 4 times another number is 4. The first number
decreased by the second number is 5. Find the numbers.

Answers

32 is the answeriikjkihhhnmdlshsndjdk

Autumn measures the angle of elevation from the ground to the top of an 18-foottall tree as 27°. To the nearest tenth of a foot, how far is she from the tree?

Answers

Answer:

35.3 ft (nearest tenth)

Step-by-step explanation:

Please see the attached picture for the full solution.

Brainliest for correct answer

Answers

Answer:

a) b

b) d

Step-by-step explanation:

Select the correct answer.
How many solutions exist for the absolute value equation 2|x + 2| + 1 = 9?


0

1

2

3

Answers

Answer:

There are 2 solutions for 2|x + 2| + 1 = 9

Step-by-step explanation:

Hope this helps

hii please help i’ll give brainliest!!

Answers

Answer:

third one i think soo ( a push or pull acting on an object )

Three sets Venn diagram

Answers

Answer:

I hope this helps a little bit

What is an equivalent ratio to 3/4?

Answers

Answer:

6/8

Step-by-step explanation:

multiply both of them by 2 and its equal.

you get 6/8

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