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Question 1181222: Louise and Tina worked a total of 108 hours this week. Louise works twice as many hours as Tina. How many hours did Tina and Louise each worked this week
Rosa

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Question 1181304: Carlo can type a manuscript for 10 hours. he started working then bobby joined him 2 hours later. they worked together for 4 hrs until carlo decided to stop and then bobby had to finish the manuscript alone. if bobby finished the remaining portion in 6 more hours, how long can he type the whole manuscript working alone?
Click here to see answer by greenestamps(13195)

Question 1181320: Working together, Adam and Chris can reseal a driveway in
6 hours. Working alone, Adam can reseal the driveway in 15
hours. How long would it take Chris, working alone,to reseal the
driveway?
Click here to see answer by mananth(16946)

Question 1181303: Carlo can type a manuscript for 10 hours. he started working then bobby joined him 2 hours later. they worked together for 4 hrs until carlo decided to stop and then bobby had to finish the manuscript alone. if bobby finished the remaining portion in 6 more hours, how long can he type the whole manuscript working alone?
Click here to see answer by mananth(16946)

Question 1182653: Determine the magnitude and direction of acceleration of a system composed of a 4kg cast iron block and a 3kg steel block connected by a pulley. The two blocks are placed on each side of a 2-sided brass inclined plane. The cast iron is placed on the 20-degree side, while the steel is placed on the 45-degree side of the inclined. The coefficients of kinetic friction for cast iron and steel on brass are 0.30 and 0.44 respectively. The static coefficients of friction are 0.40 for cast iron on brass and 0.50 for steel on brass.
Click here to see answer by ikleyn(52748)

Question 1182650: Determine the magnitude and direction of acceleration of a system composed of a 4kg cast-iron block and a 3kg steel block connected by a pulley. The two blocks are placed on each side of a 2-sided brass inclined plane. The cast iron is placed on the 20-degree side, while the steel is placed on the 45-degree side of the inclined. The coefficients of kinetic friction for cast iron and steel on brass are 0.30 and 0.44 respectively. The static coefficients of friction are 0.40 for cast iron on brass and 0.50 for steel on brass.
Click here to see answer by ikleyn(52748)

Question 1182651: A block of mass m is thrown vertically down form a height of 8.0 meters. Determine the mass of the block, its initial and final velocities, and the potential and kinetic energies at the start and end of its travel. The kinetic energies of the block when it is 2m below the start is 250J and the 642 J when it is 2m above the ground.
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Question 1182649: A block of mass m is thrown vertically down from a height of 8.0 meters. Determine the mass of the block, its initial and final velocities, and the potential and kinetic energies at the start and end of its travel. The kinetic energies of the block when it is 2m below the start is 250J and the 642 J when it is 2m above the ground.
Click here to see answer by ikleyn(52748)

Question 1182710: A jet plane is observed 400ft above the ground and is flying 180 mph to the west. A man jumps out of the plane creating a projectile motion and recorded that he is descending at a constant velocity of 6 ft/s after he reached an observable distance from the ground. If the man is to reach the ground 37 seconds after his immediate jump off the plane, determine the range of the initial position of the plane to the target landing of the man in the ground.
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Question 1182960: Justin recently drove to visit his parents who live 504 miles away. On his way there his average speed was 16 miles per hour faster than on his way home (he ran into some bad weather). If Justin spent a total of 16 hours driving, find the two rates.
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Question 1183732: Noel can paint a house in 8 hours, while Topher can paint the same place in 15 hours. They work together for 4 hours. After 4 hours, Noel left, and Topher finished the job alone. How many more days did it take Topher to complete the job?

Click here to see answer by josgarithmetic(39613)

Question 1183767: the intensity at which an object is illuminated varies inversely as the square of its distance from the light source. At 1.5 ft from a light bulb, the intensity of the light is 60 units. What is the intensity at 1 ft?

Click here to see answer by Theo(13342)

Question 1183768: the intensity at which an object is illuminated varies inversely as the square of its distance from the light source at 1.5 feet from a light bulb the intensity of the light is 60 units what is the intensity at 1 feet
Click here to see answer by Boreal(15235)

Question 1183876: the perimeter off a rectangle field is 480 meters. the length is 50 meters larger than the width. find the dimensions of the field.
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Question 1183946: A tank initially contains 100 gallons of a solution in which 50 pounds of salt are dissolved.
Three gallons of brine, each gallon containing 2 pounds of salt, run into the tank each minute, and that the mixture, kept uniform by stirring, runs out at the rate of 2 gallons per minute. Find the amount of salt in the tank after 1 hour.
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Question 1184152: Two 3D printers are turned on at 8:00 AM if one can produce 48 items and the
other can produce 41 items each hour, at what time will they produce a total
of 712 items.
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Question 1184361: Jack, Kay, and Lynn deliver advertising flyers in a small town. If each person works alone, it takes Jack 2 hours to deliver all the flyers, and it takes Lynn 5 hours longer than Kay. Working together, they can deliver all the flyers in 60% of the time it takes Kay working alone. How long does it take Kay to deliver all the flyers alone?
Click here to see answer by ankor@dixie-net.com(22740)

Question 1184456: Carol, a Grade 3 learner, has a heart rate of 56 beats per minute. Calculate how many times her heart will beat in 5 minutes, 30 seconds, 1 hour?
Click here to see answer by Theo(13342)

Question 1184871: If nine men take 15 days to assemble 18 machines, how many days will it take 20 men to assemble 60 machines?
Clue: This problem is a combination of direct and indirect relations. To deal with this problem, ask yourself how the variable M(men) varies with the respected D(days); that I, will more men require more days or will more men require less days to do the job? How about M and C(machines)? Will more men produce more machines or more men produce less machines?
Show your complete solution.
Click here to see answer by greenestamps(13195)

Question 1184870: If nine men take 15 days to assemble 18 machines, how many days will it take 20 men to assemble 60 machines?
Clue: This problem is a combination of direct and indirect relations. To deal with this problem, ask yourself how the variable M(men) varies with the respected D(days); that I, will more men require more days or will more men require less days to do the job? How about M and C(machines)? Will more men produce more machines or more men produce less machines?
Click here to see answer by Boreal(15235)

Question 1184891: Nana can paint a room in 6 hours,Harith can do the job in 4 hours,but Angela need 2 hours to paint the same room.How long does it take them to paint the room if they work together?
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Question 1185315: 7 men can dig a drain in 10 days. how many men would dig the same drain in 14 days

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Question 1185315: 7 men can dig a drain in 10 days. how many men would dig the same drain in 14 days

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Question 1185315: 7 men can dig a drain in 10 days. how many men would dig the same drain in 14 days

Click here to see answer by greenestamps(13195)

Question 1185333: Tom and john together can paint a room in 2 hours. If tom is painting the room alone, he can only complete the task in 6 hours. How long will jasper take to paint a room all by himself?
Click here to see answer by ankor@dixie-net.com(22740)

Question 1185454: what equation would represent the amount of the work they can finish in 1 day if they work together?

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Question 1185495: Last year Michael painted his room in 3 hours. This year Michael and John were able to paint the room together in 2 hours. How long would it have taken John to paint the room working alone?
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Question 1185521: Angelica takes 2 hours less than Ezra to paint the room. Working together, they can paint the room in 24 hours. How long does it take each of them to paint the entire room?
Click here to see answer by josgarithmetic(39613)

Question 1186135: Determine the restrictions of the variable
1
____ = 3
3+2
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Question 1186150: 4 persons complete 4 programs in 4 hours of programming time, taking a 15-minute interval for each completed program, for a total of 5 hours worked. How long would it take them to complete 36 programs (including intervals)?
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Question 1186199: jake, Ken and Fiona can plow the field in 7, 4, and 6 hours respectively. What fraction of the field can they plow in 1 hour if they work together? (If the answer is decimal, express answer in two decimal places)
Click here to see answer by josgarithmetic(39613)

Question 1186245: sam and justin together can do a work in 2 days. if they had to work separately, the time taken by justin to do the work would be more than that of sam by 3 days. in how many days cam justin do the work alone? *
Click here to see answer by josgarithmetic(39613)

Question 1186244: sam and justin together can do a work in 2 days. if they had to work separately, the time taken by justin to do the work would be more than that of sam by 3 days. in how many days cam justin do the work alone? *
Click here to see answer by josgarithmetic(39613)

Question 1186378: A model rocket is launched with an initial upward velocity of 50 m/s. The rocket's height h (in meters) after t seconds is given by the following,
h = 50t - 5(t,s)
Find all the values of t for which the rocket's height is 30 meters.
Click here to see answer by Alan3354(69443)

Question 1186458: Jose can do a certain job in 10 days, and Roy can do the same job in 12 days. If two men work together, how many days would it takes to finish the job?
Click here to see answer by ikleyn(52748)

Question 1186703: Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 5hours. Together they charged a total of $2825. What was the rate charged per hour by each mechanic if the sum of the two rates was $220 per hour?
Click here to see answer by greenestamps(13195)

Question 1186804: Find the slope of any line perpendicular to the line through (4,0) and (-6,1)
Click here to see answer by Alan3354(69443)

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