On tax free weekend, Alyssa bought 4 pairs of blue jeans for $159.52. The cost of the jeans is proportional to the number of pairs of jeans bought. What is the constant of proportionality in terms of dollars per pair of jeans?

Answer 1

To find the constant of proportionality in this scenario, we need to determine the cost per pair of jeans. We know that Alyssa bought 4 pairs of blue jeans for a total cost of $159.52.

The formula for the constant of proportionality \( k \) can be expressed as:

\[ k = \frac{\text{Total Cost}}{\text{Number of Pairs}} \]

Plugging in the values we have:

\[ k = \frac{159.52}{4} \]

Now we perform the calculation:

\[ k = 39.88 \]

Therefore, the constant of proportionality in terms of dollars per pair of jeans is:

\[ \boxed{39.88} \]