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

### Instruction:
 Kifungua kinywa cha Will kilimpatia kalori 900 za nishati. Kisha akaamua kukimbia kwa nusu saa, ambayo ilimtumia kalori 10 za nishati kwa dakika. Ni kalori ngapi za nishati alizobaki nazo Will baada ya kukimbia?


### Response:
 Will alikimbia kwa dakika 60/2 = <<60/2=30>>30.
Aliweza kutumia kalori 30 x 10 = <<30*10=300>>300 kwa kukimbia.
Kwa hiyo, kalori ngapi za nishati alizobaki nazo Will baada ya kukimbia ni 900 - 300 = <<900-300=600>>600.