SOLUTION: Mr. Rey asked Ben to finish a house repair job in 3 days. Ben knows that he can do it in 5 days. If Ben hires a helper, how fast can the helper work to finish the house repair in 3
Algebra.Com
Question 1009048: Mr. Rey asked Ben to finish a house repair job in 3 days. Ben knows that he can do it in 5 days. If Ben hires a helper, how fast can the helper work to finish the house repair in 3 days?
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
The set up looks like this:
3/5 + 3/B = 1
where B is the time it takes the helper by himself...
Solve this a couple of ways...let's multiply by 5B and get
3B + 15 = 5B
15 = 2B
B = 7.5 days
RELATED QUESTIONS
Mr Asif can do a job in 10 days. After working 3 days, he hires a helper and the two... (answered by ankor@dixie-net.com)
I really Need Help With My Grade 9 Algebraic Equations and its for 20 points in every... (answered by richwmiller)
Abel and ben working together can accomplish a task in 6 hrs 40 mins. after working with... (answered by stanbon)
need help with this one
al can paint a house in 10 days and ben can paint the house... (answered by stanbon)
if 3 men can repair the house in 20 days,how many days can 5 men do the same... (answered by ankor@dixie-net.com)
A man can paint a certain house in 5 days. He and his brother can do the job together in... (answered by josgarithmetic,ikleyn)
allan can finish a set of furniture in 8 days. ben can finish the same set of furniture... (answered by ankor@dixie-net.com,stanbon)
Ben owns a house on a river. The river flows at 3 mph. Ben decides to start rowing... (answered by stanbon)
ben finishes his work in 8 days. frank works 3 times faster than ben.james works 5 times... (answered by ankor@dixie-net.com)