The front wheel on Alvin's bicycle made 262.5 revolutions while he was riding it. The tire made 7 revolutions per minute. How many minutes did he ride his bicycle?

If the front wheel made 262.5 revolutions and 1 revolution takes 7 minutes then, he's been cycling for 262.5/7 = <<262.5/7=37.5>>37.5 minutes. Answer: \boxed{37.5}.