algebra
posted by mary .
making linear equation from word problem
At low altitudes, the altitude of a parachute and time in the air are linearly related. A jump at 2,880 ft use the US army T10 parachute system last 120 sec.
(A) find a linear model relating altitude a (in feet) and time in the air t (in seconds)
(B) the rate of descent is the speed at which the jumper falls. What is the rate of descent for a T10 system?
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