Question

A train travels at a constant rate of speed and is traveling 120 miles per hour. What is k, The constant of proportionality

Answer 1

Answer:

k = 120 ; y = 120x

Step-by-step explanation:

d = vt

d - distance (dependent variable)

v - speed (constant)

t - time ( independent variable)

d = 120t

In terms of y, x and k the equation is

y = 120x and k = 120

Answer 2

Step-by-step explanation:

The volume of a hemisphere = (2/3)πr3 cubic units. Where π is a constant whose value is equal to 3.14 approximately. “r” is the radius of the hemisphere.