SOLUTION: In 1977, 17% of all U.S. households had cable tv. In 1998, 67% had cable tv. How much did the % of households that had cable increase from 1977 to 1998? How many years were in this

SOLUTION: In 1977, 17% of all U.S. households had cable tv. In 1998, 67% had cable tv. How much did the % of households that had cable increase from 1977 to 1998? How many years were in this

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Question 735657: In 1977, 17% of all U.S. households had cable tv. In 1998, 67% had cable tv. How much did the % of households that had cable increase from 1977 to 1998? How many years were in this study?
We did this...67-17...50%..?? And we got 22 years in the study. Are those answers right? Thank you!
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
1998-1977=21 years.
67/17=3.94 or 394 % increase.
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