It takes 61 pounds of seed to completely plant a 10-acre field. How many acres can be planted per pound of seed?

Question

It takes 61
pounds of seed to completely plant a
10-acre field. How many acres can be planted per pound of seed?

Answer 1

Mia, this requires only a proportion to solve. We know because the relationship between seeds and acres never changes; just the scale of the operation. Let's start formulating:

(61 lb / 10 acres) = (1 lb / X acres)

We always cross-multiply first:

61X   = 10

/61       /61

  X     =  .1639 (you didn't specify where to round, so I stopped at 4 places)