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

### Instruction:
 Mike ananunua vitu dukani. Anahitaji kununua shati, mkoba mpya, na chakula cha jioni. Shati lina thamani ya theluthi ya mkoba. Mkoba una thamani ya $60 zaidi ya gharama ya chakula, ambacho Mike alitumia $30. Mike alitumia kiasi gani siku hiyo kwenye ununuzi?


### Response:
 Mkoba una gharama ya $60 zaidi ya chakula, hivyo ni $30 + $60 = $<<30+60=90>>90.
Shati ni theluthi ya gharama ya mkoba, hivyo ni $90 / 3 = $<<90/3=30>>30.
Jumla ya Mike alitumia siku hiyo ni $30 + $30 + $90 = $<<30+30+90=150>>150.