Question

Henry will buy grass seed for his lawn. Each bag of grass seed covers an area of 925

square feet. Henry's lawn is 128 feet long and 72 feet wide. He estimates that he will
need 8 bags of grass seed. Is this estimate reasonable?
Show all your work!

Answer 1

No, He will need 10 bags of grass.

Explanation:

To check if this estimation is reasonable, first we need to find the area of the lawn. And then we will divide the area by the area each bag can cover.

Area of the lawn:

= 128 ft × 72 ft

= 9216 sq. ft

Each bag of grass seed covers an area of 925 square feet. So to cover an area of 9216 sq. ft, he will need:

= 9216 sq. ft ÷ 925 sq. ft

= 9.96 bag
`\approx` 10 bags

Thus,

He will be needing 10 bags of grass for his lawn. His previous estimation of 8 bags will be a short of. Hence, 10 bags is more reasonable.