Question 610867
d = rt


1 = r*12


1/12 = r


r = 1/12


So her rate is 1/12 km per min


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d = rt


3 = (1/12)t ... Note: 3 km = 3000 m


3*12 = t


36 = t


t = 36


So it will take her 36 minutes.

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