You need to but fertilizer for a circular flower bed with a diameter of 13 feet. If one bag will fertilize 10 square feet, how many bags do you need to buy
To find the area of the circular flower bed, we use the formula for the area of a circle:
Area = π * r^2,
where r is the radius of the circle. Since the diameter is given as 13 feet, the radius is half of that, so r = 13/2 = 6.5 feet.
Plugging in the values into the formula, we get:
Area = π * (6.5)^2
Area ≈ 132.73 square feet.
If one bag of fertilizer can cover 10 square feet, we divide the total area of the flower bed by the area covered by one bag:
132.73 square feet / 10 square feet per bag ≈ 13.27 bags.
Since you cannot purchase a fraction of a bag, you would need to round up to the next whole number. Therefore, you need to buy around 14 bags of fertilizer.