Jack usually mows his lawn in 4 hours. Marilyn can mow the same yard in 3 hours. How much time would it take for them to mow together. Please help!

Question

anonymous · Answer

in one hour jack mows = 1/4 lawn
in one hour marilyn mows = 1/3 lawn

both in 1 hour = 1/4 +1/3 = 7/12 lawn

7/12 lawn in 1 hour , so 1 lawn in 12/7 hours

anonymous · Answer

I need a good answer please

anonymous · Answer

in 1 hour Jack mows 1/4 of lawn
In 1 hour Marilyn can mow 1/3

Together in 1 hour they can mow 1/4 + 1/3 of lawn = 7/12 of lawn
so to mow the full lawn together they will take 12/7 hours

anonymous · Answer

yes what i sed....????

anonymous · Answer

u r correct Randi !!

anonymous · Answer

H@H@ thank you lolz

anonymous · Answer

How come u r able to solve such questions but are putting your entire algebra homework on the site for solution ???

anonymous · Answer

because I am having a hard time figuring them out, I have been studying for them since this morning and my brain is UUGGHH of equations like these, these answers arn't equations lolz

anonymous · Answer

and my homework has 100 questions on it and its krazie!!!! lolz

anonymous · Answer

I suggest that you do algebra on your own and ask ppl to check yr answers n confirm that they r ok

Otherwise your grounding in algebra will suffer and it will affect other areas of sciences too...

anonymous · Answer

alright :D