Question

The area of a rectangle must be at least 135 square feet. If the length is 9 feet, find the minimum for the rectangle's width

Answer 1

area of triangle=1/2 length *base
135=9*base*1/2

Answer 2

area of a rectangl = length*width
here lenfth = 9 = constant
therefore,
area directly proportional to width
(area)min = 9*(width)min
135 = 9*width
width = 135/9 = 15 ft

Answer 3

thanks

Answer 4

:D