Scott started to read a novel. He read 21 pages a day. After 7 days, he had 5/8 of the book left. How many pages are there in the book?
Don't you understand the answer that Damon posted for you yesterday?
http://www.jiskha.com/display.cgi?id=1456367694
I didn't see it sorry.
To find the number of pages in the book, we need to determine the total number of pages that Scott read in 7 days, and then calculate the remaining fraction of the book.
Scott reads 21 pages per day for 7 days, so he reads 21 x 7 = 147 pages in total.
After 7 days, Scott had 5/8 of the book left. This means that the fraction of the book he had read was 1 - 5/8 = 3/8.
Let's represent the total number of pages in the book as x. According to the information above, Scott read 3/8 of the book, which is equal to 3/8 * x.
Since Scott read 147 pages and this is equal to 3/8 of the book, we can set up the equation:
3/8 * x = 147
To solve for x, we can multiply both sides of the equation by 8/3:
x = 147 * (8/3)
x ≈ 392
Therefore, there are approximately 392 pages in the book.