Question

Joselyn is a manager at a sign painting company. She has three painters, Allen, Brianne, and Charles. Allen can complete a large project in 16 hours. Brianne can complete the same sized project in 18 hours. Charles is new, so no one knows how long it will take him

Answer 1

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Answer 2

your problem has been done before look at this link:
http://openstudy.com/study#/updates/52d07692e4b01e5fc1dea864

Answer 3

Allen can complete 1/16 of the project per hour
Brianne can complete 1/18 of the project per hour
Charles can complete 1/x

Together they can accomplish 1/16 + 1/18 + 1/X per hour.
we need a common denominator, which is 288X
=
18x+16x+288288x


Choose t as the time it takes them all, so 1/t is the hourly rate.

1/t =
18x+16x+288288x



or t =
288x18x+16x+288


Once the project is completed, Jocelyn will have t, so she will only need to solve for x in this equation to find out the rate 1/x for Charles working by himself (assuming he gets good training!)

Answer 4

thats not my work it is from the link

Answer 5

okay. thanks!!!

Answer 6

your welcome hope it helped :)