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

### Instruction:
 约翰买了3个杠铃，给了850美元，找了40美元的零钱。每个杠铃的价格是多少？


### Response:
 杠铃的总价格是850-40=810美元。
所以每个杠铃的价格是810/3=270美元。