Questions on Word Problems: Rate of work, PAINTING, Pool Filling answered by real tutors!

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Question 1208894:
Click here to see answer by Edwin McCravy(20054)

Question 1208959: Patrice, by himself, can paint four rooms in 10 hours. If he hires April to help, they can do the same job together in 6 hours. If he lets April work alone, how long will it take her to paint four rooms?
Let A = length of time it will take April to paint four rooms

Here is my equation:
(1/10) + (1/A) = 1/6
Is this correct?

Click here to see answer by ikleyn(52778)

Question 1208958: It takes an HP LaserJet 1300 laser printer 10 minutes longer to complete a 600-page print job by itself than it takes an HP LaserJet 2420 to complete the same job by itself. Together, the two printers can complete the job in 12 minutes. How long does it take for each printer to complete the print job alone? What is the speed of each printer?

Click here to see answer by ikleyn(52778)

Question 1209016: An oil tanker can be emptied by the main pump in 4 hours.An auxiliary pump can empty the tanker in 9 hours. If the main pump is started at 9 AM, when should the auxiliary pump be started so that the tanker is emptied by noon?
Click here to see answer by ikleyn(52778)

Question 1209017: A bathroom tub will fill in 15 minutes with both faucets open and the stopper in place. With both faucets closed and the stopper removed, the tub will empty in 20 minutes. How long will it take for the tub to fill if both faucets are open and the stopper is removed?
Click here to see answer by ikleyn(52778)

Question 1209440: Sliding at 18 cm/min instead of 16 cm/min, a slug saves 25 seconds crossing a cabbage leaf. How long is the leaf, in cm?
CC12#5
Click here to see answer by josgarithmetic(39617)

Question 1209440: Sliding at 18 cm/min instead of 16 cm/min, a slug saves 25 seconds crossing a cabbage leaf. How long is the leaf, in cm?
CC12#5
Click here to see answer by ikleyn(52778)

Question 1188303: For a given mass of gas in a piston, 𝑝𝑉^1.5 = 400 where p is the pressure in N/m^2, and V is the volume in m^3. Suppose the pressure increases at a constant rate of 3 N/m^2 per minute. Find the rate at which the volume is changing at the instant when the pressure is 50 N/m^2.
Click here to see answer by artographer(1)

Question 1182652: The total energy required to move a 10-N block up a 25-degree incline for 10 meters is 500 Joule. A frictional force of 10-N opposes the motion of the block. Determine the force (parallel the inclined) required to move the block, the rate of work done if the work was done in 10 seconds, and the initial velocity of the block if its velocity at 10 meters is 30 m/s.
Click here to see answer by CPhill(1959)

Question 1182648: The total energy required to move a 10-N block up a 25-degree incline for 10 meters is 500 Joule. A frictional force of 10-N opposes the motion of the block. Determine force (parallel the inclined) required to move the block, the rate of work done if the work was done in 10 seconds, and the initial velocity of the block if its velocity at 10 meters is 30 m/s.
Click here to see answer by CPhill(1959)

Question 1119: Sally can paint a house in 4 hours and Joe can paint the same house in 6 hours. If they work together how long will it take them to paint the house?
thanks
Click here to see answer by KtipsayFoozeBamps(1)

Question 1210372: If painter A can paint a wall in one hour and painter B can paint the same wall in two hours, how long does it take for painter A and B to paint the same wall together?

Click here to see answer by ikleyn(52778)

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