07-11-2018
Mathematics

contestada

a new photocopier Works 2 times as fast as an old one when the machines work together a university can produce all its staff manuals and 28 hours find the time it would take each machine working alone to complete the job

Respuesta :

heyitsmatti heyitsmatti

07-11-2018

new one takes 9 1/3 hours
old takes 18 2/3 hours

28/3=9 1/3
9 1/3 x 2= 18 2/3

Answer Link

Otras preguntas

9.1: Two-three-four and Four-five-six Triangle A has side lengths 2, 3, and 4. Triangle B has side lengths 4, 5, and 6. Is Triangle A similar to Triangle B?

the threshold of hearing is defined as the minimum discernible intensity of the sound. it is approximately 10−12w/m2 . find the distance d from the car at which

In a board game, players take turns spinning a wheel with 4 spaces and values of $20, $60, $80, and $120. The probability of landing on $20 is 4/9. The probabi

what did the religious revivalism, the temperance movement, benevolent activities, and whig politics all do

There are nine water bottles in Devin's refrigerator. He adds three full boxes of water bottles to the refrigerator. Then he adds two more boxes that each has

The specific gravity of an material is defined as the ratio of the density of the material to the density of water. The specific gravity of ice is 0.917, wherea

how does the detail of the children on the spirits legs contribute to the overall text

which of the following is the best method for examining the mentalis muscle? group of answer choices a. circular compression b. digital palpation c. indirect vi

suppose a 50 turn coil lies in the plane of the page in a uniform magnetic field that is directed into the page. the coil originally has an area of0.15m2. it is

which statement is true? question 21 options: this is not a function because some of the elements in the range are not associated with any element in the domain