posted by marisol .
a paint supplier has two machines that prouce both indoor paint and outdoor paint. to meet its contractual obligations,the company must produce at least 60 gallons of indoor paint and 100 gallons of outdoor paint. machine 1 makes 3 gallons of indoor paint and 10 gallons of outdoor paint per hour.machine 2 makes 4 gallons of indoor paint and 5 gallons of outdoor paint per hour. it costs $28 per hour to run machine 1 and $33 per hour t run machine 2.
how many hours should each machine be operated to fulfill the contract at minimum cost?