SOLUTION: Write an expression. A decade is 10 years. How many years are in d decades?

SOLUTION: Write an expression. A decade is 10 years. How many years are in d decades?

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Question 714749: Write an expression.
A decade is 10 years. How many years are in d decades?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
1 decade = 10 years

d*1 decade = d*10 years

d decades = 10d years

So there are 10d years in d decades
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