Q29. Public Transportation: New York City has received a federal grant 100$ million for improving public transportation. The funds are to be used only for the purchase of new buses, the purchase of new subway cars, or the repaving of city streets. Costs estimated at estimated 150,000$ per bus, 180,000$ per subway car, and 250,000$ per mile for repaving. City officials want to determine different ways of spending the grant money. a) Define the decision variables and write the equation which ensures complete expenditures of federal grand.
b) If it has been determined that 100 buses and 200 new subway cars will be purchased, how many miles of city streets can be repaved?
c) If officials wish to spend all of the grant money on one type of improvement, what are the different possibilities?