Question

A traveler is walking on a moving walkway in the airport. The traveler must walk back on the walkway to get a bag her forgot. The traveler's ground speed is 2ft/s against the walkway and 6ft/s with the walkway. What is the travelers speed off the walkway? What is it the speed of the current?

Answer 1

what do i do then

Answer 2

so ihave to find r and w

Answer 3

right

Answer 4

let
r = speed of traveler off the walkway (or speed of traveler on still walkway)
w = speed of walkway itself

r - w= 2
r + w = 6

Answer 5

but how do i do that

Answer 6

you can add the two equations

Answer 7

so 6+2 would equal 8 which would be the guy walking on the runway

Answer 8

if you add the two equations you would get
2r = 8

Answer 9

so r would be 2 and the i would multiply 2 by to get 16 which would be him walking of the runway

Answer 10

2r = 8


divide both sides by 2

r = 4

Answer 11

which is him now walking off the runway