Respuesta :

3 meters per minute is the rate. 

7.5/3 = how much minutes he walked. 
7.5/3 = 2.5

Answer: It walked for 2.5 minutes. 
The tortoise would be walking for 2.5 minutes because
3x2=6 and that would equal to two minutes and then there 1.5 meters left to walk
so if 1.5 is half of 3 than the minute would be cut in half to to leave with the answer that the tortoise took 2.5 minutes to walk 7.5 meter.
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