Question

The equation a = 640s gives the relationship between s square miles and a acres. Kevin owns 8.5 square miles of farmland. How many acres does he own? 5,440 acres 13.28 acres 1.33 acres 544 acres

Answer 1

He would have 5,440 acres

Answer 2

5440 acres

Explanation:

Given: The equation a = 640s gives the relationship between s square miles and a acres. Kevin owns 8.5 square miles of farmland.

To Find: How many acres does he own.

Solution:

Area of farmland owned by kevin
`=8.5`
`\text{square miles}`

The given equation is

`\text{a}=640\text{s}`

here
`\text{a}` is area in acres, and
`\text{s}` is area in square miles.

putting values in equation

`\text{a}=640*\text{area in sq. miles}`

`\text{a}=640*8.5`

`\text{a}=5440`

`=5440`
`\text{acres}`

Hence kevin owns
`5440`
`\text{acres}` of farmland