sammie2000 sammie2000

17-01-2017
Mathematics

contestada

It takes Christy 1.5 hours to clean the garage. It takes the kids 2 hours to clean the same garage. If they all clean together, how long will it take to clean the garage? Solve algebraically.

Please help!!!

Respuesta :

JayDilla JayDilla

17-01-2017

christy c = 90 min

kids k = 120 min

total time t = ?

I would do : 90+120 = 210 then divide that by 2 which equals 105 min

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