Suppose you want to determine the distance d that light travels in h hours. the speed of light is approximately 670,616,629 miles per hour. which direct variation equation represents this situation?
a. d= 670,616,629/h
b. d=670,616,629h
c. h=670,616,629/d
d. h=670,616,629d

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.