Mathematics

Mathematics, 01.09.2019 19:30, fainet

John, rick, and molli paint a room in 3 hours. john can paint a room in 9 hours, and rick can do it in 11 hours. how long does it take molli? show your work.

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Mathematics, 27.06.2019 16:50, jocelynfray16

John, rick, and molli can paint a room working together in 6 hours. alone, john can paint the room in 12 hours. if rick works alone, he can paint the room in 15 hours. write an equation comparing the group rate to the sum of the individual rates. then find how long it will take molli to paint the room if working alone. a.) what is the equation? b.) what is the lowest common denominator for the equation in part a? c.) show all work below in solving the equation from part a. d.) how many hours would it take molli to paint the room if she worked by herself?i really need on this.

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Mathematics, 28.06.2019 06:40, PastyMexican24

John, rick, and molli can paint a room working together in 6 hours. alone, john can paint the room in 12 hours. if rick works alone, he can paint the room in 15 hours. write an equation comparing the group rate to the sum of the individual rates. then find how long it will take molli to paint the room if working alone. a. what is the equation? b. what is the lowest common denominator for the equation in part a? c. show all work below in solving equation from part a.

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Mathematics, 28.06.2019 15:20, arrichardson787

John, rick, and molli can paint a room working together in 6 hours. alone, john can paint the room in 12 hours. if rick works alone, he can paint the room in 15 hours. write an equation comparing the group rate to the sum of the individual rates. then find how long it will take molli to paint the room if working alone.

Answers: 3

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Mathematics, 17.07.2019 15:30, exiZT7535

20 points, topic: hourly rates amount of time: * three friends can paint the room together – 1 hour * john can paint the room alone – 4 hours * rick can paint the room alone – 5 hours b. what is the hourly rate for john, rick, and molli (when working together)? use rooms per hour as the unit for your rates. c. what is the hourly rate for john? what is the hourly rate for rick? refer to the amount of time you determined in which john and rick can paint the room alone. use rooms per hour as the unit for your rates. d. write an equation comparing the group rate to the sum of the individual rates. how should the group rate and the sum of the individual parts compare? use parts (b) and (c) to you write the equation. e. what is the least common denominator for the equation you found in part (c)? f. solve the equation and determine how long it will take molli to paint the room alone.

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John, rick, and molli paint a room in 3 hours. john can paint a room in 9 hours, and rick can do it...

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