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

### Instruction:
Melanie has twice as many cats as Annie, and Annie has three times fewer cats than Jacob. If Jacob has 90 cats, how many cats does Melanie have?

### Response:
Annie has 90/3=<<90/3=30>>30 cats.
So, Melanie has 30*2=<<30*2=60>>60 cats.
#### 60