1. Tickets for the school play cost $5 for students and $8 foradults. On opening night, all 360 seats were filled, and the boxoffice revenues were $2610. How many student and how many adulttickets were sold?
2. A $76,000 trust is to be invested in bonds paying 8%, CDspaying 7%, and mortgages paying 10%. The bond and CD investmentmust equal the mortgage investment. To earn a $6670 annual incomefrom the investments, how much should the bank invest in bonds?
3. Suppose that Janine desires 46 grams of protein and 38 gramsof dietary fiber daily. One serving of kidney beans has 8 grams ofprotein and 6 grams of dietary fiber. One serving of refried pintobeans has 6 grams of protein and 6 grams of dietary fiber. If aserving of kidney beans costs $0.45 and a serving of refried pintobeans costs $0.35, then how many servings of each should Janine eatto minimize cost and still meet her requirements?
