A hot-air balloon is rising to its cruising altitude. Suppose the air temperature around the balloon drops 5 degrees (°F)each time the balloon rises 1,000 feet. What is the net change in air temperature around the balloon as it rises from 7,000 feet to 9,000 feet?The temperature change was ? °F.

A hotair balloon is rising to its cruising altitude Suppose the air temperature around the balloon drops 5 degrees Feach time the balloon rises 1000 feet What i class=

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Change in temperature : -5°F each 1,000 ft

Change in altitude ; 9000-7000 =2,000

Net change= (2,000/1,000) * -5 = 2 *-5 = -10° F

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