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It takes Maria 11 mins to weed a garden. Mike can weed the same garden in 10 minutes. How long would it take them if they work together?  I got 21 mins but i honestly don't know how to round it.
 one year ago
 one year ago
It takes Maria 11 mins to weed a garden. Mike can weed the same garden in 10 minutes. How long would it take them if they work together?  I got 21 mins but i honestly don't know how to round it.
 one year ago
 one year ago

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saifoo.khanBest ResponseYou've already chosen the best response.2
\[\frac 1x =\frac{1}{10}+\frac{1}{11}\]
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.2
1/10 = Mike's part. 1/11 = Maria'a part. 1/x = time it will take if both will work.
 one year ago

ArtchickyBest ResponseYou've already chosen the best response.0
Alright and so then i would find the common denominator and then solve for the x?
 one year ago

hbaBest ResponseYou've already chosen the best response.1
Now take the lcm,cross multiply and get to x.
 one year ago

ArtchickyBest ResponseYou've already chosen the best response.0
I got 120/110. do i divide 110 by 120 and turn it into a decimal?
 one year ago

ArtchickyBest ResponseYou've already chosen the best response.0
. okay so for my lcd i did 11 by 10. then okay i messed up my adding. it should be 21/110
 one year ago

ArtchickyBest ResponseYou've already chosen the best response.0
then i would multiply the 1 and that would isolate the x. leaving me with the 21/110 and then i simplify it?
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.2
x is in the denominator currently. Do something to bring it to the numerator.
 one year ago

ArtchickyBest ResponseYou've already chosen the best response.0
multiply the 110 to the top and bottom. I would get 110 over 110x?
 one year ago

hbaBest ResponseYou've already chosen the best response.1
See this, \[\frac{ 1 }{ a }=\frac{ 11 }{ 10 }\] \[a=\frac{ 10 }{ 11 }\]
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.2
dw:1358612774385:dw
 one year ago

ArtchickyBest ResponseYou've already chosen the best response.0
okay now i understand
 one year ago

hbaBest ResponseYou've already chosen the best response.1
\[\frac{ 1 }{ x }= \frac{21}{110}\] \[\ x=..\]
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.2
Lol. I'm speechless.
 one year ago
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