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

### Instruction:
Mirasol had $50 in her account. She spent $10 on coffee beans and $30 on a tumbler. How much is left in her account?

### Response:
 Kahawa inagharimu $10, hivyo gharama ya jumla kwa kahawa na kikombe ni $10 + $30 = $<<10+30=40>>40.
Mirasol ana $50, hivyo $50 - $40 = $<<50-40=10>>10 kimesalia katika akaunti yake.