SOLUTION: Mary and Carol are doing a month project. Carol can do work twice as fast as Mary. If they work together they can finish the project in 4 hours. hOW WOULD YOU Reprsent the amount

Question 888482: Mary and Carol are doing a month project. Carol can do work twice as fast as Mary. If they work together they can finish the project in 4 hours. hOW WOULD YOU Reprsent the amount of work that mary can finish in 1 hour? how about the amount of work that carol finish in 1 hour?
Answer by LinnW(1048) (Show Source): You can put this solution on YOUR website!
Set C = Carol's rate in projects per hour
M = Mary's rate is projects per hour
4*( combined rates for Carol and Mary ) = 1 project completion
4(C+M) = 1
Since Carol's rate is 2 times Mary's rate we can rewrite the above
where C = 2M

divide each side by 12
M = 1/12
Mary's rate is 1/12 project per hour
She can complete 1/12 of the project in one hour.

RELATED QUESTIONS
Mary and Carol are doing a month project. Carol can do work twice as fast as Mary. If... (answered by josmiceli)

Mary and Carol are doing a math project. Carol can do work twice as fast as Mary. If... (answered by josmiceli)

Mary can work word problems twice as fast as Tara. If they work on a mathematics... (answered by richwmiller)

If Team A and Team B work together, they can finish a project in 6 days. Team A is twice... (answered by ikleyn)

it takes mary 3 hours to do a job that it takes jane. If they work together, they can... (answered by richwmiller)

it takes mary 3 hours more to do a job than it takes jane. if they work together,they can (answered by josmiceli)

peter can finish a task 8 hours, and Sam can finish the same task twice as fast as Peter. (answered by math_tutor2020,ikleyn,josgarithmetic)

2. Renan can finish a project in 3 weeks. James takes 6 weeks doing the same project. If... (answered by richwmiller)

Marie Just on and Danny are working on their group project. If they work together they... (answered by ikleyn)