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

### Instruction:
A school has 100 students. Half of the students are girls, the other half are boys.  20% of the girls have dogs at home and 10% of the boys have dogs at home.  How many students own dogs?

### Response:
 Kati ya wanafunzi 100, nusu ni wasichana na nusu ni wavulana, hivyo kuna 100/2 = <<100/2=50>>50 wasichana.
Kuna wasichana 50 kati ya wanafunzi 100, hii inamaanisha kuna 100-50 = <<100-50=50>>50 wavulana.
Asilimia 20 ya wasichana 50 wana mbwa, hivyo wana mbwa .20*50 = <<20*.01*50=10>>10.
Asilimia 10 ya wavulana 50 wana mbwa, hivyo wana mbwa .10*50 = <<.10*50=5>>5.
Wasichana wana mbwa 10 na wavulana wana mbwa 5, hivyo jumla wana mbwa 10+5 = <<10+5=15>>15.