The length of the rectangle is 10cm less than 4 times the width. If the perimeter is 1.3m, find the dimensions of the rectangle.

Express your length and width as algebraic expressions:

width = x

length = 4x

Use the formula for the perimeter of a rectangle to solve for x:

perimeter = 2 (length) + 2 (width)

50 = 2 (4x) + 2 (x)

50 = 8x + 2x

50 = 10x

5 = x

The width (x) is 5 feet and the length (4x) is 20 feet.