SOLUTION: If it takes a person 9 hours to paint a fence and it takes another person 5 how long will it take both of them to paint the fence working together
Algebra.Com
Question 545850: If it takes a person 9 hours to paint a fence and it takes another person 5 how long will it take both of them to paint the fence working together
Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!
A rate: 1/9 job/hr
B rate: 1/5 job/hr
---
Together rate: 1/x job/hr
---
Equation:
A rate + B rate = together rate
multiply everything by (9*5*x)
add like terms
divide by 14
x=3.2143 hrs
RELATED QUESTIONS
If one person takes four hours to paint a house and another person takes 6 hours,how long (answered by lynnlo,DrBeeee,Alan3354)
if it takes 2 ppl 9 hours to paint a fence and 3 ppl 6 hours to paint a fence. how many... (answered by stanbon,Alan3354)
if it takes a person thirty minutes to paint a house and it takes another person forty... (answered by checkley77)
if someone takes hours to paint a room, and another person takes 12 hours to paint a... (answered by CharlesG2)
It takes 1 person 2 hours to paint a car. It takes another person 4 hours to paint
a... (answered by ankor@dixie-net.com)
It takes Sal 5 hours to paint a house. It takes Mary 3 hours to paint the same house. How (answered by junior403)
It takes Sal 5 hours to paint a house. It takes Tom 3 hours to paint the same house. How (answered by Alan3354)
It takes Sal 5 hours to paint a house. It takes Pal 3 hours to paint the same house. How... (answered by ptaylor)
it take 10 hours to a paint a fence it takes someone else 7 hours, how long does it take... (answered by josgarithmetic)