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Question 1075752: Kareem and Abdul are working together on a neighborhood cleanup. Kareem can clean up all the trash in the area in 7 hours while Abdul can do the same job in 9 hours. How long will it take them working together? and convert your answer in hour, minutes, and seconds form.
I have figured out that
36(1/9x+1/7x)=
9x+7x=36 =
16x/16=63/16 =
x=3 15/16
I am having trouble figuring out how to covert my answer to hours, minutes, and seconds.
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! a few ways to convert
3600 seconds in an hour*15/16=3375 sec.
divide by 60 to get 56.25 minutes
.25 minutes is a quarter of a minute or 15 seconds
3h56m15s
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Also (15/16)*60 minutes and go right to 56.25 minutes and solve from there.
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