The table below shows the proportional relationship between the weight of dog food, in ounces, and the number of bags of dog food: Number of Bags of Dog Food Number of Ounces of Dog Food 3 36 4 48 5 60 What is the constant of proportionality?
Let w represent weight, n represent the number of bags, and k be the constant of proportionality.
Thus: w = k·n
Substituting, 3 for n and 36 for w: 36 = k·3 ---> k = 12.
You could also use 4 for n and 48 for w or 5 for n and 60 for w and get the same result.
