###Human: A dog barks 30 times per minute.  If 2 dogs bark 30 times per minute, how many times will they have barked after 10 minutes?, ### Assistant: There are 2 dogs and they each bark 30 times per minute so together they bark 2*30 = 60 times per minute
2 dogs bark a combined total of 60 times per minutes, after 10 minutes they will have barked 60*10 = 600 times 
 So the answer is :  600