Assume a merchandising company provides the following information from its master budget for the month of May:

Cash balance, May 1 - $ 20,000

Cash collections from customers - $ 80,000

Cash disbursements for merchandise purchases - $ 35,000

Cash disbursements for selling and administrative expenses - $ 40,000

If the company wishes to maintain a minimum cash balance of $30,000 at the end of every month, then its borrowings at the beginning of May will equal?