OpenStax, Elementary Algebra 2e §8.9 Use Direct and Inverse Variation · Review Exercise 142 · Algebra · Rational expressions
Use Direct and Inverse Variation · Review Exercise 142
Solve.
Sue and Deb work together writing a book that takes them 90 days. If Sue worked alone it would take her 120 days. How long would it take Deb to write the book alone?
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Elementary Algebra 2e · §8.9 Use Direct and Inverse Variation · Review Exercise 142
Stuck? A gentle nudge
No hints for this one.
Your working
Check your full solution
Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.