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

### Instruction:
Matthew, Patrick and Alvin are eating dinner together. Matthew eats three times as many egg rolls as Patrick eats. Patrick eats half as many egg rolls as Alvin eats. If Alvin ate 4 egg rolls, how many did Matthew eat?

### Response:
Patrick eats half as many egg rolls as Alvin eats, which is 4/2=<<4/2=2>>2 egg rolls.
Matthew eats three times as many egg rolls as Patrick eats, which is 3*2=<<3*2=6>>6 egg rolls that Matthew eats.
#### 6