Final answer:
To find the fraction of the puppy's adult weight it currently is, we set up a proportion and solve for the adult weight. Then, we set up another proportion to find the fraction.
Step-by-step explanation:
In order to find the fraction of the puppy's adult weight it currently is, we first need to determine the puppy's adult weight. We know that the puppy currently weighs 9 pounds and is at about 20% of its adult weight. To find the adult weight, we can set up a proportion:
9 / x = 20 / 100
Cross multiplying, we get:
100 * 9 = 20 * x
Simplifying, we find that the puppy's adult weight, x, is 45 pounds.
Now we can determine the fraction of its adult weight the puppy currently is by setting up another proportion:
9 / 45 = x / 100
Cross multiplying, we get:
100 * 9 = 45 * x
Simplifying, we find that the puppy is currently at 20% of its adult weight.