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

### Instruction:
Alyssa, Keely, and Kendall ordered 100 chicken nuggets from a fast-food restaurant. Keely and Kendall each ate twice as many as Alyssa. How many did Alyssa eat?

### Response:
To figure out this problem you must first set up the equation 100=a+(2a)+(2a)
100=5a
100/5=<<100/5=20>>20
Alyssa ate 20 nuggets.
#### 20