Mountain climber A is at an altitude of 250 feet and is descending at a rate of 30 feet per hour. Mountain climber B is at an altitude of 400 feet and is descending at a rate of 50 feet per hour. In how many hours will the altitude of mountain climber b be lower than the altitude of mountain climber a

Question

Mathematics

Lailah Savage

14 March, 22:52

Mountain climber A is at an altitude of 250 feet and is descending at a rate of 30 feet per hour. Mountain climber B is at an altitude of 400 feet and is descending at a rate of 50 feet per hour. In how many hours will the altitude of mountain climber b be lower than the altitude of mountain climber a

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Amira Meyers · Answer 1

250 - 30h > 400 - 50h

-30h + 50h > 400 - 250

20h > 150

h > 150/20

h > 7.5 ... any number above 7.5 hrs ... because 7.5 hrs puts them at the same altitude