Problema Solution
The height of a wide screen t.v screen varies directly with its width.a t.v screen that is 60 centimeters wide and 33.75 centimeters high.write and solve a direct variation equation to find the height of a t.v screen that is 90 centimeters wide.
Answer provided by our tutors
let
h = the height of a t.v screen that is 90 centimeters wide
The height of a wide screen t.v screen varies directly with its width.a t.v screen that is 60 centimeters wide and 33.75 centimeters high:
60 = 33.75*k, where k is constant
k = 60/33.75
also we have 90 = h*k follows k = 90/h
by solving the equation:
60/33.75 = 90/h
we find:
h = 50.625 cm
click here to see the step by step solution of the equation:
the height of a a t.v screen that is 90 centimeters wide is 50.625 cm.