1. Agenda 10/6/11 1. Discuss HW 2. More Proportion Practice 3. Using Proportion to Solve Word Problems

2. Proportion Word Problems Make sure that the amounts being compared MUST be in the same position on either side of the = sign.

3. If 12 yards of lumber cost $40, how much do 30 yards of lumber cost? Step 1: Set up two ratios of yards to cost. Step 2: Find both cross products. Step 3: Divide both sides of the proportion.

5. Step 2: Find both cross products.

7. Step 2: Find both cross products.

9. Step 2: Find both cross products.

11. Practice For every $13 that Helen earns, she takes home $10. Helen’s gross pay each month is $1950. How much does she take home each month?

12. Exercise 4, page 143-144 1-10