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

### Instruction:
Nadine collected different colored pebbles. She has 20 white pebbles and half as many red pebbles. How many pebbles does she have in all?

### Response:
 Nadine ana mawe mekundu 20/2 = <<20/2=10>>10.
Hivyo, ana jumla ya mawe 20 + 10 = <<20+10=30>>30.