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

### Instruction:
 Derrick anapima urefu wa shamba lake. Urefu wa shamba la Alex ni nusu ya ukubwa wa shamba la Derrick na urefu wa shamba la Brianne ni mara 6 ya ukubwa wa shamba la Alex. Ikiwa shamba la Brianne ni urefu wa mita 30, urefu wa shamba la Derrick ni kiasi gani, kwa mita?


### Response:
 Urefu wa shamba la Alex ni 30/6=<<30/6=5>>5 mita.
Urefu wa shamba la Derrick ni 5*2=<<5*2=10>>10 mita.