shae0401 shae0401

10-04-2017
Mathematics

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I need the answers asap it's for pre calculus

I need the answers asap its for pre calculus class=

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apologiabiology apologiabiology

10-04-2017

jimrate=1/18boat per day

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

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