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

### Instruction:
James supercharges his car which increases his car's speed by 30%.  He then cuts weight by 15% which increases the speed a further 10 mph.  If his car's original speed was 150 mph what is the new speed?

### Response:
 Gari lake awali linakwenda kwa kasi ya 150 mph na anaiweka kasi kwa 30% ambayo ni 150 * 0.3 = 45 mph.
Gari lake sasa linakwenda kwa kasi ya 150 + 45 = <<150+45=195>>195 mph.
Anapunguza uzito na kuongeza kasi yake kwa 10 mph zaidi kwa kasi mpya ya 195 + 10 = <<195+10=205>>205 mph.