Question

Tina read 20% of her textbook this week. If Tina read 9 pages, how many pages, total, are in hertextbook?

Answer 1

45 pages

Step-by-step explanation:

The total number of pages in her textbook is equivalent to 100% of her textbook. So, using the ratio that 20% are 9 pages, we can find the 100% as follows

`100*(9)/(20)=(100*9)/(20)=(900)/(20)=45`

Therefore, her textbook has 45 pages in total.