Question

Joni has a circular

garden with a diameter of 14;, feet. If
she uses 2 teaspoons of fertilizer for
every 25 square feet of garden, how
much fertilizer will Joni need for her
entire garden? Round to the nearest
tenth.

Answer 1

12.31 teaspoons

Explanation:

Calculate the area of a garden with a radius of 7 feet:

Area =
`\pi`
`r^(2)`

Conversion factor (2 teaspoons/25ft^2)

Area = (3.14)(7)^2

Area = 153.9 ft^2

(153.9 ft^2)(2 teaspoons/25ft^2) = 12.31 teaspoons