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
AveGali [126]
2 years ago
14

A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B

and C on every third day?
Mathematics
1 answer:
Goshia [24]2 years ago
4 0

A, B and C working together will finish same piece of work in 10 days

A can do a piece of work in 20 days. That is A is doing the work at a rate of  1 / 20. Therefore

B = 1 / 30

C = 1 / 60

A, B and C working togehter their rate will be added together =

A + B + C =  1 / 20 + 1 / 30 + 1 / 60 = 1 / 10

so they can work together to finish same piece of work in 10 days

You might be interested in
A newspaper reported that 4040​% of people say that some coffee shops are overpriced. The source of this information was a telep
vampirchik [111]

Answer:

a. Identify the population of interest in this study.

  • all the population of the country

b. Identify the sample for the study.

  • 50 adults (the ones that were surveyed)

c. Identify the parameter of interest in the study.

  • the parameter of interest is the people that believe that coffee shops are overpriced

d. Find and interpret a 95​% confidence interval for the parameter of interest.

z score for a 95% confidence level = 1.96

margin of error (E) = z score x √{[0.4(1 - 0.4)] / 50} = 1.96 x 0.069282 = 0.13579

95% confidence level interval:

0.4 - 0.13579 = 0.26421

0.4 + 0.13579 = 0.53579

  • 95% confidence interval (0.26421 , 0.53579)

5 0
3 years ago
Point (6, 0) lies on the<br><br> X-axis<br> Oy-axis<br> line y = x
tresset_1 [31]

Answer:

x - axis

Step-by-step explanation:

Since, y-coordinate of point (6, 0) is zero.

Hence, it lies on x - axis.

4 0
2 years ago
Read 2 more answers
HELP ME PLEASE IT IS A QUICK PROBLEM AND I HAVE 4 MINUTES LEFT!!
GaryK [48]

Answer:

Uuh whats the problem

Step-by-step explanation:

Mark as brainliest

7 0
2 years ago
What is the closest perfect square greater than 54
Anna35 [415]

Answer:

64

Step-by-step explanation:

Perfect squares are integers multiplied by themselves.

  • 2 times 2  = 4
  • 3 times 3  = 9
  • 4 times 4  = 15

The closest perfect squares to 54 are 49 (7^2) and 64 (8^2).

49 is less than 54, so that's ruled out.

Therefore, the closest perfect square to 54 that is greater than it is 64.

6 0
3 years ago
Can you graph this please i need help !!!!!!!!<br> y=11x
pav-90 [236]

Answer:

your answer would be at 11 and 1

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • What is the exact distance from (_1, 4) to (6, _2)?
    7·2 answers
  • Find the image of (–7, –3) reflected across the x-axis. A. (–7, 3) B. (7, –3) C. (7, 3) D. (–7, –3)
    9·1 answer
  • I need answers ASAP!!
    9·2 answers
  • 135 is what percent of 150?
    9·1 answer
  • Emily is a diver. Today she descended to a
    11·2 answers
  • Find the volume.<br> h = 10 cm<br> rea<br> 144 cm
    9·1 answer
  • How many 1/2 inch cubes would it take to fill up a 6 inch cube.
    9·2 answers
  • Pls help will give brainliest
    10·1 answer
  • Figure ABCD is transformed to figure A′B′C′D′:
    9·2 answers
  • Solve the absolute value inequality |4x+7|-2|-x-2|≥2x+3
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!