Question

use two equations in two variables to solve the application.a rectangle is 7 times as long as it is wide, and it’s perimeter is 160 centimeters. find the dimensions (in cm)

Answer 1

To solve this problem we can visualize our rectangle as follows:

So, as shown above, we can consider x and y as the rectangle sides and y = 7x. Once we know the perimeter, now we can calculate x as follows:

So, we have:

So: