Question

There are 640 acres in a square mile. how many square meters are there in 7.80 acres.

Answer 1

Answer:

On 7.8 acres there are 31565.3 square meters

7.8 acres = 31565.3 m²

Step-by-step explanation:

Conceptual analysis

Acre, square mile and square meter are area units, so their equivalences are in square units.

Known data

1 (mi)² = 640 acres

1 mi = 1609.34 m

Problem development

We know that 1 mile = 1609.34m, then: (1 mile)² = (1609.34m)²=(1609.34)²m²

We apply the known conversion factors to calculate the square meters (X) in 7.8 acres:

`X=7.8 acres *((1 mi)^(2) )/(640 acres) * ((1609.34)^(2)m^(2)  )/((1 mi)^(2) )`

We eliminate acres and square miles (mi²) because they are in the numerator and denominator, so the answer is in square meters (m²)

X=31565.3 m²

On 7.8 acres there are 31565.3 square meters

7.8 acres = 31565.3 m²