avarage increase rate 如何求eletronic deposit,there were 10 million in 1989,and the number increase to 50 million in 1996...记不清楚了,ask what is the avarage increase rate for the past 6 years.

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avarage increase rate 如何求
eletronic deposit,there were 10 million in 1989,and the number increase to 50 million in 1996...记不清楚了,ask what is the avarage increase rate for the past 6 years.

设平均增长率X,则10﹡(1+x)^6=50,求出x即可

50/10*100%/6