SOLUTION: A weather balloon climbs 4800 metres in half an hour, at a uniform rate. As it climbs the temperature drops at an average rate of 1.8 degrees Celcius for every 300 metres climbed.

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Question 1044342: A weather balloon climbs 4800 metres in half an hour, at a uniform rate. As it climbs the temperature drops at an average rate of 1.8 degrees Celcius for every 300 metres climbed.
a. What is the rate at which the balloon is climbing in metres per mintue?
b. Express your answer to (a) in kilometres per hour
c. Find the temperature at 4800 metres, to the nearest degree, if the temperature at ground level is 25 degrees Celcius.
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Unit conversions happening

system%28%284800%2F0.5%29%28meters%2Fhours%29%2C%281.8%2F300%29%28degC%2Fmeters%29%29


(a)
%284800%2F0.5%29%28meters%2Fhours%29=highlight%289600%28meters%2Fhour%29%29
9600%28meters%2Fhour%29%281%2F60%29%28hours%2Fminutes%29
highlight%28160%28meters%2Fminute%29%29

(b)
You can do this one.
1000 meters is 1 kilometer

(c)
What is the temperature change from 25 degrees C?
Ground level is 0 meters.
4800 meters is at which temperature?
-
Drop size of temperature, 4800%2Ameters%2A%28-1.8%2F300%29%28degC%2Fmeters%29
-28.8%2AdegC, really negative 29 degrees C.
-
25-29=highlight%28-4%2AdegreesC%29