If it takes 7.2 pounds of seed to plant one acre of grass, how many acres can be planted with 8.64 pounds of seed?

Question

If it takes 7.2 pounds of seed to plant one acre of grass, how many acres can be planted with 8.64 pounds of seed?

Answer 1

Set up a proportion such as 7.2 pounds/1 acre = 8.64 pounds/x acres.

Then cross multiply giving you 7.2x = (1)(8.64), Divide both sides by 7.2 and you get x = 1.2 acres