marmarmar1 marmarmar1

17-05-2017
Mathematics

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1.You’ve fallen down a slippery, eighteen-feet deep hole. Each hour, you climb up three feet, and then slip backwards two feet. How many hours will it take you to reach the top of the hole and climb out?

Respuesta :

17-05-2017

climb up 3 ft per hr and fall down 2 ft per hr

18 = 3h-2h

solve for h

h=18 hr

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