painman444 painman444

18-05-2018
Mathematics

contestada

jenny traveled to the lake and back.on the trip there she traveled 80km/h and on the return trip she went 60km/h. how long did the trip there take if the return trip took 4 hours?

Respuesta :

Maryneth Maryneth

18-05-2018

if the return trip took 4 hours, her speed is equal to: v= S: t= 60/4= 15km/h

that make her trip there take: t= S:v = 80: 15= 5,33h= 5h20'

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