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

### Instruction:
Nina wants to buy a new video game with her allowance money. The game cost 50 dollars. Nina also has learned that there is a 10 percent sales tax. She receives 10 dollars a week as an allowance, and thinks she can save half of that. How many weeks will it take for Nina to be able to buy the new video game with her savings?

### Response:
 Kodi ya asilimia 10 kwenye dola 50 itakuwa 10 / 100 x 50 = <<10/100*50=5>>5 dola. 
Gharama ya mchezo na kodi itakuwa 50 + 5 = <<50+5=55>>55 dola. 
Nina ataokoa nusu ya posho yake kila wiki, au 10 / 2 = <<10/2=5>>5 dola kwa wiki. 
Gharama jumla ya mchezo na kodi, ikigawanywa na akiba ya kila wiki ya Nina ni 55 / 5 = <<55/5=11>>11 wiki.