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

### Instruction:
 Tracy, Michelle, na Kati wanafanya safari ya barabarani ambayo jumla yake ni maili 1000. Tracy anaendesha maili 20 zaidi ya mara mbili ya Michelle, na Michelle anaendesha mara 3 ya Kati. Michelle anaendesha maili ngapi?


### Response:
 Hebu tuchukue x kuwakilisha idadi ya maili ambayo Kati anaendesha
Michelle: 3x
Tracy: 20 + 2(3x) = 20 + 6x
Jumla: x + 3x + 20 + 6x = 1000
10x + 20 = 1000
10x = 980
x = 98 maili
3(98) = 294 maili