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a groundskeeper needs grass seed to cover a circular field 290 ft in diameter. a store sell 50 lb bags of grass seed. 1 lb of grass seed covers about 400 square feet of field. what is the smallest number of bags the groundskeeper must buy to cover the circular field?

Respuesta :

The diameter of circular field is 290ft .

The area of circular field is

[tex]A=\Pi(r^2)^{}[/tex][tex]A=\Pi(145)^2=66018.5ft^2[/tex]

It is given that 1 lb of grass seed covers about 400 square feet of field.

The smallest number of bags he should buy is

[tex]\frac{66018.5}{400}=165\text{ bags}[/tex]

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