For every 8 squirrels that Travis sees in his backyard, six are dining at the bird feeder. Travis saw 28 squirrels today. About how many were eating birdseed?

6/8 = 3/4

3/4 * 28 = 21

To determine the approximate number of squirrels eating birdseed, we can set up a proportion based on the information given.

Let's say x represents the number of squirrels eating birdseed out of the 28 squirrels that Travis saw today.

The proportion can be set up as:

6 squirrels dining / 8 squirrel sightings = x squirrels eating birdseed / 28 squirrel sightings

To get the value of x, we can cross-multiply:

6 * 28 = 8x

168 = 8x

To solve for x, we divide both sides of the equation by 8:

168 / 8 = x

x ≈ 21

Therefore, approximately 21 squirrels were eating birdseed.