Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Ellen is in charge of parking at a golf tournament. Once the main lot is full, she must direct cars to park in the overflow lot. She must transport the patrons who parked in the overflow lot up to the main lot using a golf cart. Ellen can fit 3 patrons in a golf cart. There are 12 patrons who came in cars and 27 from a bus waiting in the overflow parking lot. How many golf carts does Ellen need to transport them?

### Response:
 Kuna jumla ya wateja 12 waliokuja kwa magari + 27 kutoka basi = <<12+27=39>>39 wateja ambao wanahitaji usafiri hadi eneo kuu.
Wateja 3 wanaweza kubebwa katika kila gari la gofu, hivyo wateja 39 / 3 katika gari moja = <<39/3=13>>13 magari jumla.