On tax free weekend, Alyssa bought 4 pairs of blue jeans for $154.60. 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?
A.
41.85
B.
35.85
C.
37.45
D.
38.65
B. 35.85
To find the constant of proportionality in terms of dollars per pair of jeans, divide the total cost by the number of pairs of jeans bought:
$154.60 / 4 = $38.65 per pair
Therefore, the constant of proportionality is $38.65 per pair of jeans.