Ellie has to read a certain amount for her ELA class every week. Each week she reads 4 chapters of her book and 15 pages from a magazine. After 3 weeks she has read 111 pages. How many pages were in each chapter?

ok, 3 weeks mean she has read 45 pages from her magazine. And 12 chapters.

111 - 45 = 66.

so 12 chapters = 66 pages

66 / 12 = 5.5 pages per chapter  

7

step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it