100%/x%=80/20
(100/x)*x=(80/20)*x - we multiply both sides of the equation by x
100=4*x - we divide both sides of the equation by (4) to get x
100/4=x
25=x
x=25
It would be B (530.7) because if you do 3.14 x 13 x 13 (Or to the second power) Then you get 530.66, the round to the nearest tenths
Answer: 20 mph
Step-by-step explanation:
Given
The airplane is at a height of 528 ft with a rate of 20 mph
The automobile is also directing east at the rate of 40 mph
at this instant, they are separating by the relative velocity between them
![\Rightarrow v_{rel}=40-20=20\ mph](https://tex.z-dn.net/?f=%5CRightarrow%20v_%7Brel%7D%3D40-20%3D20%5C%20mph)
Answer:
-12 and -4
Step-by-step explanation:
-12 + (-4) = -16
-12 x -4 = 48