He works out for 1.5*60=<<1.5*60=90>>90 minutes per class

So he burns 90*7=<<90*7=630>>630 calories per class

That means he burns 630*3=<<630*3=1890>>1890 calories per week

# Answer

1890
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
James takes a spinning class 3 times a week.  He works out for 1.5 hours each class and burns 7 calories per minute.  How many calories does he burn per week?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
1890
James takes a spinning class 3 times a week.  He works out for 1.5 hours each class and burns 7 calories per minute.  How many calories does he burn per week?
train