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

### Instruction:
On a weekend road trip, the Jensen family drove 210 miles on highways, where their car gets 35 miles for each gallon of gas and 54 miles on city streets where their car gets 18 miles for each gallon. How many gallons of gas did they use?

### Response:
 Kwenye barabara kuu, familia ya Jensen ilatumia maili 210 / 35 maili/galoni = <<210/35=6>>6 galoni ya mafuta.
Kwenye mitaa ya mji, familia ya Jensen ilatumia maili 54 / 18 maili/galoni = <<54/18=3>>3 galoni ya mafuta.
Jumla, familia ya Jensen ilatumia galoni 6 + galoni 3 = <<6+3=9>>9 ya mafuta.