justintsmith6415
25.10.2019 •
Mathematics
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.
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Ответ:
kids k = 120 min
total time t = ?
I would do : 90+120 = 210 then divide that by 2 which equals 105 min
Ответ: