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Dauzat - 8 SP.A.3 Vet

A veterinarian collected data about the growth of a puppy during the first 9 weeks after birth. The veterinarian wrote the equation n=1.6w + 3 to show the relationship between the age of the puppy, w, in weeks and its weight, n, in ounces.

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Based on the veterinarian's equation, in how many weeks will the puppy weigh 12.6 ounces?

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1 answer

To find out how many weeks it will take for the puppy to weigh 12.6 ounces, we can use the equation given by the veterinarian:

\[ n = 1.6w + 3 \]

We want to find \( w \) when \( n = 12.6 \).

We can set up the equation:

\[ 12.6 = 1.6w + 3 \]

Now, let's solve for \( w \):

  1. Subtract 3 from both sides:

\[ 12.6 - 3 = 1.6w \ 9.6 = 1.6w \]

  1. Divide both sides by 1.6:

\[ w = \frac{9.6}{1.6} \ w = 6 \]

So, the puppy will weigh 12.6 ounces in 6 weeks.