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Equation for the relation:

Let the distance covered be 'y' and the time elapsed be 'x'

We are given that y = 90 and x = 30 for a particular moment in time

dividing y by x, we get:

y / x = 90 / 30

y / x = 3

y = 3x

Distance covered in 10 seconds:

Speed of moving walkway = distance travelled / time taken

Speed = 90 / 30

Speed = 3 feet / second

The speed of the walkway is 3 feet per second. Which means that the walkway covers 3 feet in a second

Distance covered in 10 seconds:

from the equation: s = ut, we can find out the distance travelled in 10s

we are given: u = 3 ft/s ,  t = 10s

Replacing the variables

s = 3 * 10

s = 30 feet

The walkway covers 30 ft in 10 seconds

yes

step-by-step explanation:

yes

where are the graphs?

step-by-step explanation: