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
Andrews [41]
2 years ago
14

a recipe to make chocolate chip cookies calls for 2 eggs for every 12 ounces of chocolate chips if the chef wants to use 7 eggs

how many ounces of chocolate chips will he need? (PLEASE ANSWER ASAP!)

Mathematics
1 answer:
Mars2501 [29]2 years ago
3 0

Answer:

7×6= 42 oz

Step-by-step explanation:

12oz=2 eggs

36oz=7 eggs

12÷2=6 which is how many oz per eggs

You might be interested in
19. A sample of 50 retirees is drawn at random from a normal population whose mean age and standard deviation are 75 and 6 years
Juliette [100K]

Answer:

a) Approximately normal.

b) The mean is 75 years and the standard deviation is 0.8485 years.

c) 0.9909 = 99.09% probability that the mean age exceeds 73 years

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Sample of 50 retirees

This means that n = 50

Mean age and standard deviation are 75 and 6 years

This means that \mu = 75, \sigma = 6

a. Describe the shape of the sampling distribution of the sample mean in this case

By the Central Limit Theorem, approximately normal.

b. Find the mean and standard error of the sampling distribution of the sample mean.

By the Central Limit Theorem, the mean is 75 and the standard error is s = \frac{6}{\sqrt{50}} = 0.8485

c. What is the probability that the mean age exceeds 73 years?

This is 1 subtracted by the pvalue of Z when X = 73.

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{73 - 75}{0.8485}

Z = -2.36

Z = -2.36 has a pvalue of 0.0091

1 - 0.0091 = 0.9909

0.9909 = 99.09% probability that the mean age exceeds 73 years

5 0
2 years ago
What is the domain of the function y=3/x-1?<br> O<br> -00 O-1 O 0 O 1
viktelen [127]

Answer:

x ≠ 1.

Step-by-step explanation:

In mathematics, anything divided by 0 is null. It is not valid. And so, in this case, x - 1 must never equal 0, but it can be any number other than 0.

x - 1 = 0

x = 1

That means that the domain of the function is x ≠ 1.

Hope this helps!

6 0
2 years ago
An airplane is flying from New York City to Los Angeles. The distance it travels in miles, d, is related to the time in seconds,
yuradex [85]

Answer:

<em>0.15</em>

Step-by-step explanation:

Given the expression that relates the distance and the time with the expression:

d = 0.15t

d is the distance

t is the time

To determine how fast it is flying (Speed), we will need to use the formula

Speed = distance/time

s = d/t

From the given equation we can se that 0.15 = d/t

Comparing this to the general equation, we will see that s = 0.15

<em>Hence the airplane is flying at 0.15</em>

7 0
2 years ago
If f(x) = 7(2-1)+8, what is the value of f(11) ?
andrew11 [14]

Answer:

f ( 2 ) = 20

Explanation:

To evaluate  f ( 2 )

substitute x = 2 into  f ( x )

f ( 2 ) = ( × 2 2 − ( 4 × 2 × x = 28− 8 = 20

8 0
2 years ago
What is the rate of exchange ? i dont understand what its asking
kirill115 [55]
Simple
like when you buy something at the store. the person is selling products to you
8 0
3 years ago
Other questions:
  • 148 is 32% of what number?
    12·1 answer
  • Find the value of x.<br> Right triangle: Hypotenuse is 9, base is 7.
    10·1 answer
  • Explain how the value of the 7 in 327,902 will change if you move it to the tens place
    5·2 answers
  • How do you do these?
    7·1 answer
  • O E. $68.00
    12·2 answers
  • the radius of the base of a cylinder is 39 in and it’s height is 33 in. find the surface area of the cylinder in terms of pi
    9·1 answer
  • PLEASE HELP!!!! WHOEVER GETS IT RIGHT GETS BRAINLIEST !!!!<br><br> FIND THE VALUE OF X
    14·1 answer
  • Angles PTQ and STR are vertical angles and congruent.
    8·1 answer
  • Mrs. Garcia worked the following problem.<br> Is she correct? If not, explain her mistake.
    12·2 answers
  • Is -3(4x+5) equal to -7(8x+9)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!