Question

a big beach towel has a width that is 3 feet less than its length. Of the towels area is 28 feet, what is its length

Answer 1

the answer is 9.333

Explanation:

because if the towel of the width that is 3 feet less so you do 28/3=9.333

Answer 2

length = 7 ft

Width = 4 ft

Explanation:

length = l

Width = l -3

Area = 28 sq.ft

length *width = 28

l*(l-3) = 28

l*l - l*3 = 28

l² - 3l - 28 =0

l² - 7l + 4l - 28 = 0

l(l - 7) + 4(l - 7) = 0

(l -7) (l + 4) =

l -7 = 0 {Ignore l + 4 = 0 as , it gives a negative value}

l = 7 ft

width = 7 - 3= 4