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Robert stands atop a 1,380-foot hill. He climbs down, reaching the bottom of the hill in 30 minutes. What is Robert’s average rate of elevation change in feet per minute?
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Robert stands atop a 1,380-foot hill. He climbs down, reaching the bottom of the hill in 30 minutes. What is Robert’s average rate of elevation change in feet per minute?

User Paul Gowder
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5 votes

Answer:

an average elevation change of -46 feet per minute

User Anthony Hilyard
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This is an equation of elevation change.  Since it takes 30 minutes do go down 1380 feet, or undergo an elevation change of -1380 feet, the answer is -1380/30, or an average elevation change of -46 feet per minute
User Deniss Kozlovs
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