The girls paid $2.50/person * 10 people = $<<2.5*10=25>>25.

The girls have $30 - $25 = $<<30-25=5>>5 left.

# Answer

5
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
The girl scouts earned $30 total from selling delicious cookies. They want to go to the pool. It will cost them $2.50 per person to go and 10 people are going. What is the amount left?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
5
The girl scouts earned $30 total from selling delicious cookies. They want to go to the pool. It will cost them $2.50 per person to go and 10 people are going. What is the amount left?
train