Unit 6 · Algebra
Two Reading Rates — How Long Is the Book?
Lesson 8 of 24
About this lesson
Reading-plan questions are hidden equations: two different daily rates must cover the same book — write pages = rate × days for each plan and set them equal.
Chapters
Question
Emma plans to finish reading a book within a fixed period of time. If she reads 20 pages each day, she will have 18 pages left unread. If she reads 5 more pages each day, then she will only need to read 8 pages on the last day. How many pages are there in the book?
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