Problema Solution
A rectangle’s length is three times its width, w. Its area is 243 square units. Which equation can be used to find the width of the rectangle?
w2 = 3(243)
3w2 = 243
4w2 = 243
3w2 = 3(243)
Answer provided by our tutors
A rectangle’s length is three times its width, w means the length is: 3w
The area of the rectangle is width multiplied by length that is: w*3w = 3w^2
Since the area is 243 square units we can write:
3w^2 = 243
The equation used to find the width of the rectangle is 3w^2 = 243.