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Tutors Answer Your Questions about Rate-of-work-word-problems (FREE)
Question 1166342: A woman and
her son are playing on a seesaw. The boy is at one end, 16 feet from the fulcrum. If the son weighs
85 lb and the mother weighs 125 lb, where should the woman sit so that the seesaw is balanced?
Click here to see answer by ikleyn(52754)   |
Question 1166695: When Ibuprofen is given for fever to children 6 months of age up to 2 years, the usual dose is 5 milligrams (mg) per kilogram (kg) of body weight when the fever is under 102.5 degrees Fahrenheit. How much medicine would be usual dose for a 18 month old weighing 19 pounds?
Click here to see answer by josgarithmetic(39613) |
Question 1166802: an express train and charter bus leave chicago to travel to champaign.the express train can make the trip in two hours and the bus takes five hours for the trip. the speed of the express train is 42 miles per hour faster than the speed of the bus. find the speed of the bus?
In riding a vehicle/, which rate per miles you prefer? which is safe to travel?
Click here to see answer by dkppathak(439)  |
Question 1166802: an express train and charter bus leave chicago to travel to champaign.the express train can make the trip in two hours and the bus takes five hours for the trip. the speed of the express train is 42 miles per hour faster than the speed of the bus. find the speed of the bus?
In riding a vehicle/, which rate per miles you prefer? which is safe to travel?
Click here to see answer by solver91311(24713)  |
Question 1167867: Dimple can finish painting her room in 10 days. She started the job alone
and after working 3 days, Dimple’s cousin, Chard, joined him and
together they finished the work in another 5 days. In how many days can
Chard finish painting the room working alone?
Click here to see answer by ikleyn(52754) |
Question 1168151: A projectile that is fired vertically into the air with an initial velocity of 120 ft. per second can be modeled by the equation s = 120t - 16t2. In the equation, s is the distance in feet of the projectile above the ground after t seconds.. How long will it take for a projectile to reach 216 feet? Is it possible for the projectile to reach 900 feet? Justify your answer.
Click here to see answer by ikleyn(52754) |
Question 1168151: A projectile that is fired vertically into the air with an initial velocity of 120 ft. per second can be modeled by the equation s = 120t - 16t2. In the equation, s is the distance in feet of the projectile above the ground after t seconds.. How long will it take for a projectile to reach 216 feet? Is it possible for the projectile to reach 900 feet? Justify your answer.
Click here to see answer by Alan3354(69443)  |
Question 1168340: The owners of a recreation area are filling a small pond with water. Let W be the total amount of water in the pond (in liters). Let T be the total number of minutes that water has been added. Suppose that W=35T+300 gives W as a function of T during the next 70 minutes
Click here to see answer by ikleyn(52754) |
Question 1168727: A box with a square base is to have a volume of 8 cubic meters. Let x be the length of
the side of the square base and h be the height of the box. What are the possible
measurements of a side of the square base if the height is shorter than a side of the
square base?
Click here to see answer by josgarithmetic(39613) |
Question 1168732: A student is working two jobs over the summer to pay for a new car. The student gets paid $25 for each lawn that is mowed (x)and $15 for each pool that is cleaned (y). The student wants to earn $750 to pay for a down payment on a car.
Click here to see answer by ikleyn(52754) |
Question 1168733: A student is working two jobs over the summer to pay for a new car. The student gets paid $25 for each lawn that is mowed (x)and $15 for each pool that is cleaned (y). The student wants to earn $750 to pay for a down payment on a car.
Create a model in standard form to represent this linear relationship.
Identify the x-intercept. Explain what this means in the context of the problem.
Identify the y-intercept. Explain what this means in the context of the problem.
Identify two combinations that are solutions to this equation. Explain what these combinations mean in the context of the problem.
Click here to see answer by josgarithmetic(39613) |
Question 1168449: The local post office has three machines for sorting the mail. If each works alone, machine A can accomplish the job in 2 hours, machine B in 3hours and machine C in 1 1/2 hours. Machine C begins the job and works for half an hour when it suddenly breaks down. Machine A and B are then activated and work together to complete the sorting process. How long does it take for machines A and B to finish.
Click here to see answer by VFBundy(438)  |
Question 1168449: The local post office has three machines for sorting the mail. If each works alone, machine A can accomplish the job in 2 hours, machine B in 3hours and machine C in 1 1/2 hours. Machine C begins the job and works for half an hour when it suddenly breaks down. Machine A and B are then activated and work together to complete the sorting process. How long does it take for machines A and B to finish.
Click here to see answer by MathTherapy(10549)  |
Question 1168925: it takes james 2 hours longer to do certain job than it takes Philip. They worked together for 3 hours then philip left and james finished the job for one more hour. how long would it take each of them to do the job alone? (1 variable only)
Click here to see answer by josgarithmetic(39613) |
Question 1168983: Cynthia, Chris, and Lexi paint houses. Cynthia can paint a house in 4 hours. Chris can paint the same house in 3 hours. The three working together can paint the house in 1 hour. How many hours does it take Lexi to paint the house?
Click here to see answer by ikleyn(52754) |
Question 1169052: Tom and dick working together can perform a task in 2 hours and 24 minutes. Dick and harry working together can perform the same task in 3 hours and 36 minutes. If dick works alone, he can complete the task in 6 hours. How long will it take tom and harry perform the task working together ?
Click here to see answer by ikleyn(52754) |
Question 1169063: A tank containing 50 litres of water develops a leak and loses water at a constant rate. After 20 minutes it contains 40 litres. After a further 30 litres the tank is 5% of it's full capacity. Determine the tank capacity?
Click here to see answer by htmentor(1343)  |
Question 1169485: (a) A tank is filled by an intake pipe in 2 hours and emptied by an outlet pipe in 4 hours. If both pipes are opened, how long will it take to fill the tank?
(b) Before the pandemic, Ana can sanitize their room in 45 minutes and Clair can do the same work in 30 minutes. How long it take them to finish the same work if they work together?
Click here to see answer by ikleyn(52754) |
Question 1169485: (a) A tank is filled by an intake pipe in 2 hours and emptied by an outlet pipe in 4 hours. If both pipes are opened, how long will it take to fill the tank?
(b) Before the pandemic, Ana can sanitize their room in 45 minutes and Clair can do the same work in 30 minutes. How long it take them to finish the same work if they work together?
Click here to see answer by Edwin McCravy(20054)  |
Question 1170394: An express train and a charter bus leave Chicago to travel to Champaign. The express train can make the trip in two hours and the bus takes five hours for the trip. The speed of the express train is 42 miles per hour faster than the speed of the bus. Find the speed of the bus?
Click here to see answer by ikleyn(52754) |
Question 1170603: Two pipes are used to to fill a water tank. The first pipe can fill the tank in 4 hours alone. The two
pipes can fill tank in 2 hours less time than the second time alone. How long will it take the
second pipe to fill the tank alone?
Click here to see answer by greenestamps(13195)  |
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