Question

Eighty ounces of Lazy Lawn fertilizer covers 1,250 squares feet of lawn.
a. How many ounces would be required to cover a 4,000 square foot lawn?

Answer 1

you can set this up as a proportion
8/1250 = x/4000 ---8 oz to 1250 ft = x oz to 4000 ft
cross multiply
1250x = (4000)(8)
1250x = 32000 --- divide by 1250
x = 32000/1250
x = 25.6

25.6 oz is needed for 4000 ft