SOLUTION: Brendan can paint a room in 16 hours. Brian can paint the same room in 20 hours. How long does it take for both Brendan and Brian to paint the room if they are working together?

Question 932024: Brendan can paint a room in 16 hours. Brian can paint the same room in 20 hours. How long does it take for both Brendan and Brian to paint the room if they are working together?
Write an equation that using the variable t to represent the time it takes to paint the room together that can be used to solve the problem.
Equation:________
How long does it take? _______ hours
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
per hour KEY

20t + 16t = 320
36t = 320
t = 320/36 = 80/9 = 8 8/9 hr
RELATED QUESTIONS
Hannah can paint a room in 8 hours. Destiny can paint the same room in 6 hours. How long... (answered by nerdybill)

Hannah can paint a room in 9 hours. Destiny can paint the same room in 12 hours. How long (answered by stanbon,josgarithmetic)

Ethan can paint a room in eleven hours. Victoria can paint the same room in twelve hours. (answered by ptaylor)

rebecca can paint a room in 9 hours. Ryan can paint the same room in 8 hours. How long... (answered by Alan3354)

taylor can paint a room in twelve hours. Jennifer can paint the room in ten hours. How... (answered by nerdybill)

sally can paint a room in 6 hours, it takes steve 3 hours to paint the same room. how... (answered by josmiceli)

if john can paint a room in 2 hours while peter takes 6 hours . how long will it take... (answered by ewatrrr,richwmiller)

Nana can paint a room in 6 hours,Harith can do the job in 4 hours,but Angela need 2 hours (answered by greenestamps)

Working alone, Sue can paint a 10' x 12' rectangular room in 12 hours. Joe can paint the (answered by nerdybill)