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cotybuge2701
03.02.2020 •
Mathematics
Ineed the answers asap it's for pre calculus
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Ответ:
work=rate times time
1boat=(jimrate+harryrate) times 12
jimrate=1/18 boat per day
1boat=(1/18+harryrate) times 12
1boat=12/18+12harryrate
1boat=2/3+12harryrate
minus 2/3
1/3=12harryrate
times 1/12 both sides
1/36=harryrate
so harry needs 36 days
C
Ответ:
48
Step-by-step explanation:
i took the test on edge