SOLUTION: From start to finish, Ellen took 15 2/3 days to write a research paper for her literature class. This was 9/10 the time it took Rebecca to write her paper. How long did it take Reb

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Question 235783: From start to finish, Ellen took 15 2/3 days to write a research paper for her literature class. This was 9/10 the time it took Rebecca to write her paper. How long did it take Rebecca to write her research paper?
Answer by nyc_function(2741)   (Show Source): You can put this solution on YOUR website!
It's easier working with improper fractions than with mixed numbers.
So, we change 15_2/3 days to 47/3 days.
Also, let t = the time is takes Rebecca to write her research paper.
Here is your equation:
47/3 = 9t/10
Can you solve for t now?

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