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
EleoNora [17]
1 year ago
10

A farmer keeps a record of the weekly milk yield of his herd of seven cows over a period of six months. He finds that the mean y

ield is 24 litres. He buys another cow that he is told will produce 28 litres of milk a week. Work out the effect this will have on the mean milk yield of his cows.​
Mathematics
2 answers:
zhannawk [14.2K]1 year ago
8 0

Answer:

A farmer keeps a record of the weekly milk yield of his herd of seven cows over a period of six months. He finds that the mean yield is 24 liters. He buys another cow that he is told will produce 28 liters of milk a week. Work out the effect this will have on the mean milk yield of his cows.​

Step-by-step explanation:

Hope it helps<3

lana66690 [7]1 year ago
8 0

Answer:

24.5 liters/week

Step-by-step explanation:

24 liters/week for 7 cows is 168 liters/week

Add 1 cow that produces 28 liters/week

The new total is 196 liters/week for 8 cows

(196 liters/week for 8 cows)/(8 cows) = 24.5 liters/week is the new mean.

You might be interested in
The volume of a gas with a pressure of 1.2 atm increases from 1.0 L to 4.0 L. What is the final pressure of the gas, assuming co
salantis [7]

Answer:

(b) 0.30 atm

Step-by-step explanation:

Given data

Initial pressure= 1.2atm

Initial volume= 1.0L

Final volume= 4.0L

Final pressure= ???

Let us apply the gas formula to find the Final pressure

P1V1= P2V2

Substitute

1.2*1= x*4

Divide both sides by 4

1.2/4= x

x= 0.3atm

Hence the final pressure is 0.3 atm

5 0
2 years ago
Can someone help me please????
liraira [26]
Let X be the random variable denoting the number of successful throws.

Here X~ Binomial Distribution with n = 5 and p = 0.80.

the probability of her missing 3 (or more) free throws out of 5

= P ( X ≤ 2)

= P (X= 0) + P(X= 1) + P(X= 2)

=0.00032 + 0.0064 + 0.0512
<span>
= 0.05792

I hope my answer has come to your help. God bless and have a nice day ahead!
</span>
7 0
3 years ago
Read 2 more answers
How can i cancel my subscription
ANTONII [103]

Answer:

account settings

Step-by-step explanation:

visit your account settings and click cancel subscription

8 0
3 years ago
Read 2 more answers
Prove This :<br><br>sin(A+B)+sin(A−B)=2sinA⋅cosB​
MaRussiya [10]

Answer:

We know

sin (A + B) = sin A cos B + cos A sin B

sin (A - B) = sin A cos B - cos A sin B

(A + B) + sin (A - B)

= sin A cos B + cos A sin B + sin A cos B - cos A sin B

= sin A cos B + sin A cos B

= 2 sin A cos B

3 0
3 years ago
Suppose your car gets 28 miles per gallon of gasoline, and you are driving at 55 miles per hour. Using unit analysis, find the a
pentagon [3]
<h3>Answer:</h3>

1 27/28 ≈ 1.964 gallons/hour

<h3>Step-by-step explanation:</h3>

You want gallons in the numerator of your unit rate, but that unit is in the denominator of the mileage rate. So, the computation must involve division by 28 mpg. Hours is already in the denominator of 55 mph, so the computation will involve multiplication by that rate.

... (55 mi/h)/(28 mi/gal) = (55 mi/h)·(1 gal/(28 mi)) = 55/28 gal/h

... = 1 27/28 gal/h

7 0
3 years ago
Other questions:
  • 8. A well-balanced stock market portfolio will often experience an exponential growth. A
    15·1 answer
  • Given two parallel lines, how many unique planes contain both
    12·1 answer
  • Which of the following verified that ABC is similar to DEF
    5·1 answer
  • Suppose that we are testing a coin to see if it is fair, so our hypotheses are: H0: p = 0.5 vs Ha: p ≠ 0.5. In each of (a) and (
    7·1 answer
  • Ethan is 40 years old. His son is 12 years old.
    10·2 answers
  • What is 25 x 65 / 73?
    10·1 answer
  • The price p is less than or equal to $25
    6·1 answer
  • 19. √12 <br> rational ir iraational
    6·1 answer
  • What is the solution of 10 = 15x ?
    13·2 answers
  • 11. Shelia earns $12.00 per hour. During her performance review, her boss gave her a $0.35 raise. Is this enough to keep up with
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!