A black puppy weighed 6 ounces at birth and grows at a constant rate of 3 ounces per week. A white puppy weighed 12 ounces at birth and grows at a constant rate of 3 ounces per week. Is there a time when they will be the same weight?

Question

A black puppy weighed 6 ounces at birth and grows at a constant rate of 3 ounces per week. A white puppy weighed 12 ounces at birth and grows at a constant rate of 3 ounces per week. Is there a time when they will be the same weight?
Write an equation that represents the weight of the white puppy in ounces, y, after x weeks.
Great job!
Complete the table below with the weight of the white puppy, y, after 2, 6, and 8 weeks. You can solve on paper and then enter your answer on Zearn.
y=12+3x

Weeks (x)	Weight in oz (y)
2	
6	
8	
Great job!
Next, graph the points you just found on the coordinate plane to show the relationship between x, the number of weeks, and y, the weight in ounces of the white puppy.
Weeks (x)	Weight in oz (y)
2	18
6	30
8	36
Good work!
Now, consider the black puppy. Write an equation that represents the weight of the black puppy in ounces, y, after x weeks.

GPT-4o mini · Answer

To find the weight of the black puppy in ounces, we can use the same approach as we did for the white puppy. The black puppy weighed 6 ounces at birth and grows at a constant rate of 3 ounces per week.

The equation for the weight of the black puppy, \( y \), after \( x \) weeks can be written as:

\[ y = 6 + 3x \]

Now you can use this equation to calculate the weights of the black puppy for various weeks if needed!