The temperature fell from 0 degrees to 6 3/5 degrees below 0 in 2 1/5 hours. what was the temperature change per hour?

divide 6 3/5 by  2 1/5

6 3/5 = 33/5

2 1/5 = 11/5

33/5 / 11/5 = 3

 the temperature dropped 3 degrees per hour

answer: 0.64

step-by-step explanation:

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2