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
Taya2010 [7]
3 years ago
14

30 men repair a road in 56 days by working 6 hours daily. in how many days 45 men will repair same road by working 7 hours daily

?
Mathematics
1 answer:
zepelin [54]3 years ago
8 0

Answer:

Case1:

Men : 30

Work : 1

Time (day×hr): 56×6 = 336 hr.

Case2:

Men : let it be m men.

Work: 1

Time: 45×7 = 315 hr.

Work being constant in both cases, men and time are in inverse proportion i.e, more men take less time.

Product of men and time is constant in both cases.

Therefore, 30×336=m×315

Or, 30×336/315 = m

Or, m = 32.

Hence, required number of men is 32.

Step-by-step explanation:

You might be interested in
Can a triangle with side lengths 7, 25, and 19 be a right triangle?
NARA [144]

Well, the Pythagorean theorem is helpful.

Does 7^2+19^2=25^2?

no it desn't, so no it is not a right triangle

7 0
2 years ago
Express 18 as a fraction of 27. <br> Give your answer in its simplest form
den301095 [7]

Answer:

Thus, 2/3 is the simplified fraction for 18/27 by using the GCD or HCF method. Thus, 2/3 is the simplified fraction for 18/27 by using the prime factorization method

Step-by-step explanation:

hope l am not late!

6 0
2 years ago
Somebody know how to do this?
Lubov Fominskaja [6]

Answer:

x=1

Step-by-step explanation:

55+70=125

sum of angles in a triangle is 180 so

180-125=55

54x+1=55

x=1

6 0
2 years ago
If you roll two number cubes what is the probability of rolling two sixes
vazorg [7]

Answer:

the probability of rolling two 6's is 2 out of 12 or 0.167 rounded to the nearest thousandth

Step-by-step explanation:

there are 6 sides on a cube so that's 5 other chances that you'll get 1-5 and having two cubes doubles the chance.

3 0
2 years ago
There is a sequence of rigid transformations that takes A to A', B to B', and C to "
Marina CMI [18]

Answer:

I think it's D

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • A cylinder has a radius of 4 units and a height of 6 units.
    7·2 answers
  • When simplified, the expression (m^(3/4)×m^(-1/2)
    5·1 answer
  • a dog sled race is 25 miles long. The equation 5/8=25 can be used to estimate the race length k in kilometers. Approximately how
    12·1 answer
  • The y-intercept of the line whose equation is x - y = 7 is
    9·2 answers
  • Graph the inequality y is greater than or equal to -2x - 2
    10·1 answer
  • Jackie spent the same amount of money on cassette tapes and compact discs. If tapes cost $12 and CDs cost $16, what is the least
    14·1 answer
  • Hey Pls Help Im leaving In 10 min <br> What is 5 divided by 7/10
    5·1 answer
  • What percent of 45 is 27?
    12·1 answer
  • If you divide a polynomial f(x) by the factor (x - 4), the remainder will be equal to f(-4).
    7·1 answer
  • Identify the values of m and b of the linear function y = mx + b, graphed below. ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!