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

### Instruction:
In mid-May, the depth of a river in Moreland is measured. By mid-June, the river is 10 feet deeper than mid-May. By mid-July, the river is three times deeper than mid-June. If the river is 45 feet deep in mid-July, how many feet deep was the river in mid-May?

### Response:
 Katikati ya Juni, mto una kina cha 45/3=<<45/3=15>>15 futi.
Katikati ya Mei, mto ulikuwa na kina cha 15-10=<<15-10=5>>5 futi.