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

### Instruction:
Barry wants to make a huge salad using only cucumbers and tomatoes. He will use a total of 280 pieces of vegetables. If there are thrice as many tomatoes as cucumbers, how many cucumbers will be used in the salad?

### Response:
 Hebu c iwe idadi ya matango na t iwe idadi ya nyanya. Tunajua kwamba c + t = vipande 280 na t = 3c.
Kwa kubadilisha equation ya pili katika equation ya kwanza, tunapata c + 3c = vipande 280.
Kwa kuchanganya vipengele kama, tunapata 4c = vipande 280.
Kwa kugawanya pande zote na 4, tunapata c = vipande 70.