1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alexandr1967 [171]
3 years ago
10

You know that the average college student eats 0.75 pounds of food at lunch. If the standard deviation is 0.2 pounds of food, th

en what is the total amount of food that a cafeteria should have on hand to be 90 percent confident that it will not run out of food when feeding 50 college students?
Mathematics
1 answer:
Fynjy0 [20]3 years ago
7 0

Answer: $53.95

Step-by-step explanation:

Given: \mu=0.75 pounds

\sigma= 0.2 pounds

n= 50

Two tailed critical z-value for 90% confidence level = 1.645

Let x be the total amount of food that a cafeteria should have on hand to be 90 percent confident that it will not run out of food .

z-score = \dfrac{x-\mu}{\sigma} =\dfrac{x-0.75}{0.2}

Then, \dfrac{x-0.75}{0.2}=1.645

x-0.75=1.645\times0.2\\\\\Riightarrow\ x-0.75=0.329\\\\\Rightarrow\ x= 0.329+0.75\\\\\Rightarrow\ x= 1.079

Foe 50 students, total amount of food = 1.079 x 50 = $53.95

hence, the cafeteria should have food of amount $53.95 so that it is be 90 percent confident that it will not run out of food.

You might be interested in
Can someone help please?
Katarina [22]

Answer:

g = 6

Step-by-step explanation:

<em>To find the slope you do:</em>

m = change in y ÷ change in x or (y2 - y1) ÷ (x2 - x1)

  • x1 = 4, y1 = -7
  • x2 = g, y2 = -3
  • m (the slope) = 2

<em>Sub in the values:</em>

2 = (-3 - -7) ÷ (g - 4) - we can simplify this

2 = (4) ÷ (g - 4)

4 divided by what gives us 2? 2. This means that g - 4 = 2, g = 2 + 4 which is 6:

g = 6

Hope this helps!

8 0
3 years ago
Read 2 more answers
in three plays of a football game, there is a gain of 4 yards, a loss of 9 yards, and a gain of 15 yards. What number can you us
Aloiza [94]

We can use minus(-) sign i.e. -9 to represent loss of 9 yards.

<h3>Write the difference between gain and loss.</h3>

The word “gain” implies “acquiring something”.

Gain means to acquire something one desires especially because of one’s efforts.

Gain means to get something additional, for example, to gain more speed, to gain more weight.

We can denote gain by using plus(+) sign before the given number.

“Loss” generally means “to lose something one already has.”

Loss means the deprivation from keeping something, for example, bearing the loss of a theft.

It refers to something which is lost, for example, the theft of jewelry was a great loss.

We can denote loss by using minus(-) sign before the number.

In the given question it is said that there is gain of 4 yards, loss of 9 yards and gain of 15 yards.

It is asked that how would we represent 9 yards loss.

We know that we use minus(-) sign to represent loss.

So we can represent loss of 9 yards by writing it as -9.

To learn more about gain and loss,

brainly.com/question/18281564

#SPJ9

5 0
1 year ago
⅔ parts of the earth surface is covered with water.
Nat2105 [25]

Answer:

i.) 66% of the earth is covered in water

ii.) 33% is continental

Step-by-step explanation:

4 0
2 years ago
7f + g = 5, for f literal equations
DENIUS [597]

Answer:

i don't know what exactly your question is but i believe this is the answer if you are trying to find f. f= -1/7g+5/7

Step-by-step explanation:

7 0
3 years ago
Make x the subject of the formula y= b/ax
neonofarm [45]

Answer:

x=b/(ay)

Step-by-step explanation:

To make x the subject of the formula, we basically have to isolate the x.

To do this we first multiply both sides by x.

xy=b/a

Now, to isolate the x, we simply divide by y,

x=b/(ay)

So x=b/(ay) is our answer

8 0
3 years ago
Other questions:
  • Max travels to see his brother's family by car. he drives 216 miles in 4 hours. What is his rate in miles per hour? use a double
    15·1 answer
  • Which of the following graphs does not represent y as a function of x
    8·1 answer
  • please help.....................................................................................................................
    5·1 answer
  • For 6x^2 – 3x - 4 = 0, a = 6, b = and c=​
    5·1 answer
  • What is the missing length of LM
    7·1 answer
  • Lucas wants to use the box with the greatest volume.<br> Which shipping box should he use?<br> Box_
    10·2 answers
  • Please help me with my math! Thank you!
    6·1 answer
  • What is the solution for the equation 8x − 12 = 4x? x = ___. (Input whole number only).
    12·1 answer
  • Is the live tutoring over video, or do you type the question and send it to the tutor please explain?
    7·1 answer
  • One number is 2 more than another number. The product of the numbers is 440. Find the numbers.​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!