40.0k views
4 votes
Aida has a new puppy that weighs 9 pounds. It is now at about 20% of its adult weight.

A. The diagram shows the puppy's weight increasing.
B. The puppy is currently at 100% of its adult weight.
C. What fraction of its adult weight is the puppy now?

User Eric Baker
by
7.2k points

1 Answer

4 votes

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.

User Evangelist
by
7.3k points