Final answer:
Steve uses 1.5 bags of chocolate chips for each batch of cookies, calculated by dividing the total bags (15) by the number of batches (10).
Step-by-step explanation:
Steve uses 15 bags of chocolate chips to make 10 batches of cookies. To find out how many bags of chocolate chips are used for each batch, you need to divide the total number of bags by the total number of batches. So, the calculation would be
Number of bags per batch = Total number of bags ÷ Total number of batches
Number of bags per batch = 15 ÷ 10 = 1.5 bags per batch
Therefore, Steve uses 1.5 bags of chocolate chips for each batch of cookies.