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

### Instruction:
Sabrina gave 10 cookies to her brother. Her mother gave Sabrina half the number of cookies she gave her brother. Then Sabrina gave two-thirds of her cookies to her sister. If Sabrina had 20 cookies at the start, how many cookies are left with her?

### Response:
 Sabrina alikuwa na mikate 20 - 10 = <<20-10=10>>10 iliyobaki baada ya kumpa ndugu yake mikate 10.
Mama yake Sabrina alimpa mikate 10/2 = <<10/2=5>>5.
Hivyo, alikuwa na mikate 10 + 5 = <<10+5=15>>15 wakati huo.
Kisha, alimpa dada yake mikate 15 x 2/3 = <<15*2/3=10>>10.
Hivyo, Sabrina amebakiwa na mikate 15 - 10 = <<15-10=5>>5.