Problema Solution
The area of a rectangle is less than or equal to 50 square meters. The length of the rectangle is three times the width of the rectangle. Write an inequality for the area using the dimensions given.
Answer provided by our tutors
let
l = the length of the rectangle
w = the width of the rectangle
the length of the rectangle is three times the width of the rectangle:
l = 3w
The area of a rectangle is less than or equal to 50 square meters:
l*w <= 50
plug l = 3w into the inequality:
3w*w <= 50
3w^2 < 50 divide both sides by 3:
w^2 <= 50/3.