12-02-2021
Mathematics

contestada

If, on their own, it takes 6 hours for Person A to complete a task and 9 hours for Person B to complete the same task, then how many hours would it take if they worked together? Estimate your answer to 4 places after the decimal, if necessary.

Respuesta :

15-02-2021

Answer:

Step-by-step explanation:

A does 1/6 of the task per hour.

B does 1/9 of the task per hour.

Together, they do 1/6+1/9 = 5/18 of the task per hour, finishing in 18/5 hours.

18/5 = 3.6 hours

Answer Link

Otras preguntas

What is the function of the ring or annulus? a.it functions in the dispersal of the spores. b.it is no longer functional; in the immature mushroom it protected

Dale drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 7 hours. When Dale drove home, there was no traffic and th

In the citadel of buildings in the alhambra, the windows that frame specifically intentioned views are called __________.

If f(x) = 9 cos2(x), compute its differential df. df = (−18cos(x)sin(x))dx correct: your answer is correct. approximate the change in f when x changes from x =

The wind at 5000 feet agl is southwesterly while the surface wind is southernly. this difference in direction is primarily due to

what is the range of the function f(x) = 3/4 |x|-3 A, all real numbers B. all real numbers less than or equal to 3 C. all real numbers less than or equal to –3

Solve the equation by completing the square. Round to the nearest hundredth if necessary. x2 – 5x = 12

Which of the following is not considered to be a pedestrian? A. Horseback rider B. Skateboarder C. Construction Worker

In the 2014 supreme court case ________, the court ruled that there was no evidence that making campaign contributions to large numbers of candidates led to the

In what ways did the byzantine empire continue the patterns of the classical roman empire? in what ways was it different?