Chapter 7, Lesson 6


7-6.A use ratios to make comparisons
Tell the comparison that each ratio makes.
In a class, there are 12 boys and 13 girls.
a. 12 : 25 b. 25 : 13

7-6.B solve proportions
Which proportion has the solution w = 35?
I 1 : w = 1 : 35

(a) I and II only (b) I and III only (c) II and III only (d) I, II, and III