Answer:1 pound of fertilizer would cover 125 ft²
Step-by-step explanation:
The label on a 3 1/2 pound bag of fertilizer states that it will cover an area of 437.5 ft.² of lawn. Converting 3 1/2 pounds to improper fraction, it becomes 7/2 pounds.
Let x represent the number of square feet that 1 pound of fertilizer will cover. Therefore,
7/2 pounds = 437.5ft²
1 pound = x ft²
Crossmultiplying,
7x/2 = 437.5
7x = 437.5 × 2 = 875
x = 875/7 = 125 ft²