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

### Instruction:
 Jerry anafanya kazi siku tano kwa wiki kama mhudumu na anapata kiasi tofauti cha bahasha kila usiku. Katika siku nne zilizopita, alipata $20, $60, $15, na $40. Anahitaji kupata kiasi gani usiku wa leo ikiwa anataka kupata wastani wa $50 kwa bahasha kila usiku?


### Response:
 Katika siku nne zilizopita, Jerry alipata jumla ya $20 + $60 + $15 + $40 = $<<20+60+15+40=135>>135.
Ili kupata $50 kwa usiku, anahitaji kupata $50 x 5 = $<<50*5=250>>250 kwa siku tano.
Hivyo usiku wa leo, Jerry anahitaji kupata $250 - $135 = $<<250-135=115>>115.