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

### Instruction:
 维尼花了15000美元买了一辆二手车，这辆车的价格是原价的40%。这辆车的原价是多少？


### Response:
 设x为这辆车的原价。
那么15000美元 = 0.4x
因此 x = 15000美元 / 0.4 = 37500美元。