Carco has a $1,500,000 advertising budget. To increase its automobile sales, the firm is considering advertising in newspapers and on television. The more Carco uses a particular medium, the less effective each additional ad is. The file P04_96.xlsx lists the number of new customers reached by each ad. Each newspaper ad costs $1000, and each television ad costs $10,000.

At most, 30 newspaper ads and 15 television ads can be placed. How can Carco maximize the number of new customers created by advertising?