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

### Instruction:
It takes Emmalyn and her research team, the Polar Bears, 30 minutes to fully navigate around a volcanic island. On Saturday, they decided to start off by rounding the island once. They then re-grouped and planned out the rest of their weekend research schedule. They completed 10 more round that day and then went home. When they came on Sunday, they were able to complete 15 rounds. Calculate the total time, in minutes, the Polar Bears spent circling the island over that weekend.

### Response:
 Kwa kuwa kila duru inachukua dakika 30 kumaliza, timu ilichukua 1*30 = <<1*30=30>>30 dakika kufanya duru moja.
Siku ya kwanza, walifanya duru 1+10 = <<1+10=11>>11.
Jumla ya muda waliotumia kuzunguka kisiwa siku ya kwanza ni dakika 30*11 = <<30*11=330>>330.
Siku ya pili, walifanya duru 15, hivyo jumla ya dakika walizotumia ni 30*15 = <<30*15=450>>450.
Jumla ya Polar Bears ilichukua dakika 330+450 = <<330+450=780>>780 kuzunguka kisiwa mwishoni mwa wiki.