The Student Organization purchased a bag of 48 Hershey kisses for $4.35 and bag of 36 Hershey kisses for $3.75. Which bag of kisses was a better purchase?

Hence first bag of kisses was a better purchase.

To determine which bag of Hershey kisses was a better purchase, we need to calculate the unit price (price per Hershey kiss) for each bag.

For the first bag of 48 Hershey kisses purchased for $4.35: [ \text{Unit price} = \frac{\text{Total price}}{\text{Number of kisses}} = \frac{4.35}{48} ]

For the second bag of 36 Hershey kisses purchased for $3.75: [ \text{Unit price} = \frac{\text{Total price}}{\text{Number of kisses}} = \frac{3.75}{36} ]

We then compare the unit prices of both bags. The lower unit price indicates the better purchase because it means each Hershey kiss costs less.

[ \text{Unit price of first bag} = \frac{4.35}{48} \approx 0.090625 \text{ dollars per kiss} ] [ \text{Unit price of second bag} = \frac{3.75}{36} \approx 0.1041667 \text{ dollars per kiss} ]

Comparing the unit prices, we find that the first bag of 48 Hershey kisses for $4.35 was the better purchase because it has a lower unit price, meaning each Hershey kiss costs less compared to the second bag.