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

### Instruction:
 Bill anahitaji kuzamisha nguo zake kwa dakika 4 ili kuondoa kila madoa ya nyasi na dakika 7 za ziada ili kuondoa kila madoa ya marinara. Ikiwa nguo zake zina madoa 3 ya nyasi na madoa 1 ya marinara, anahitaji kuzamisha kwa muda gani?


### Response:
 Kwanza tafuta muda wa kuzamisha jumla ili kuondoa madoa ya nyasi: dakika 4/kidonda * madoa 3 = <<4*3=12>>12 dakika
Kisha tafuta muda wa ziada wa kuzamisha ili kuondoa madoa ya marinara: dakika 7/kidonda * madoa 1 = <<7*1=7>>7 dakika
Kisha ongeza muda wa kuzamisha ili kupata muda wa kuzamisha jumla: dakika 12 + dakika 7 = <<12+7=19>>19 dakika