subject
Mathematics, 02.02.2020 22:50 mystaxkkks

Micah can fill a box with books in 15 minutes. while micah fills the box, sydney takes the books out puts them on a shelf. with sydney taking books out of the box, it takes 20 minutes for micah to fill the box.

which of the following can be used to determine the amount of time it takes for sydney to empty the box if micah is not adding books?

a. 1 over 15 minus 1 over 20 equals 1 over x
b. 1 over 20 minus 1 over x equals 1 over 15
c. 1 over 15 minus 1 over x equals 1 over 20
d. 1 over 15 minus 1 over x equals x over 20

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 20:00
The art class is planning to paint a mural on an outside wall. this figure is a scale drawing of the wall. width: 11 in length: 28 in unit rate: 1.5 ft per in. write the ratio of the area of the drawing to the area of the actual mural. write your answer as a unit rate. show that this unit rate is equal to the square of the unit rate 1.5 ft per in
Answers: 1
question
Mathematics, 21.06.2019 20:30
Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)
Answers: 1
question
Mathematics, 21.06.2019 21:00
Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?
Answers: 1
question
Mathematics, 21.06.2019 22:00
Can you me find the slope! (30 points)
Answers: 2
You know the right answer?
Micah can fill a box with books in 15 minutes. while micah fills the box, sydney takes the books out...
Questions
question
Social Studies, 29.06.2019 08:30
question
Mathematics, 29.06.2019 08:30
Questions on the website: 13722363