1. Algebra 1 Section 11.1 Solve proportions A ratio is a comparison of two quantities. A proportion is an equation that sets two ratios equal. = Find the ratio of 12 people to 8 steaks. The cross products of a proportion are equal. a = c means a∙d = b∙c b d

2. Solve the proportion. 15 = x 8 2 x = 125 5 x

3. Solve the proportion. w+4 = -5 2w 6 2 = x-1 3x x

4. Applied problems A scale model of a statue is 1/5 of the size of the actual statue. How tall is the statue if the model is 15 inches? In a survey, 7 out of 10 students said that Math was their favorite subject. Estimate how many students out of 65 would say that Math is their favorite subject.

5. assignment Page 646 Problems 18-40 even, 41,42,44