Nancy has a 3.5-pound bag of birdseed. She uses
3
4
of the bag to fill a bird feeder in her garden. Then, she puts 0.25 pounds in a dish to give to her pet canaries. How much birdseed does she have left?
Nancy uses 3/4 * 3.5 = <<3/4*3.5=2.625>>2.625 pounds of birdseed to fill the bird feeder.
After filling the bird feeder, she has 3.5 - 2.625 = <<3.5-2.625=0.875>>0.875 pounds of birdseed left.
Then she puts 0.25 pounds in a dish for her pet canaries.
Therefore, Nancy has 0.875 - 0.25 = <<0.875-0.25=0.625>>0.625 pounds of birdseed left. Answer: \boxed{0.625}.
To find out how much birdseed Nancy has left, let's calculate the amount she used to fill the bird feeder and the amount she put in the dish for her pet canaries.
Nancy used 3/4 of the 3.5-pound bag to fill the bird feeder.
The amount used for the bird feeder is (3/4) * 3.5 = 2.625 pounds.
Next, Nancy put 0.25 pounds in the dish for her pet canaries.
Now, let's calculate the total amount used for the bird feeder and the pet canaries: 2.625 + 0.25 = 2.875 pounds.
Finally, to find out how much birdseed Nancy has left, subtract the total amount used from the original bag of birdseed:
3.5 - 2.875 = 0.625 pounds.
Therefore, Nancy has 0.625 pounds of birdseed left.