1. X = 3y = 4z = 8 2x 2 - 6 2 Step 1X = 3 Step 22(3) 2 – 6 2 Step 4 2(9) – 6 2Step 3 18 – 12 =6

2. X = 2y = 4z = 8 7z ÷ 4 + 5x Step 1Z = 8 x = 2 Step 27(8) ÷ 4 + 5(2) Step 4 56 ÷ 4 + 10Step 3 14 + 10 =24

3. X = 2y = 4z = 8 Z 2 – 5x Step 1Z = 8 x = 2 Step 2(8) 2 - 5(2) Step 4 64 – 5(2)Step 3 64 – 10 =54

4. How far does a car travel at a rate of 20 miles per hour for 3 hours? 20 mph 3 hours driving

5. How far does a car travel at a rate of 20 miles per hour for 3 hours? far = Distance Rate = 20 miles per hour Time = 3 hours Distance = (20)(3)

6. Distance = 60 miles

7. How far does a car travel at a rate of 15 miles per hour for 2 hours? 15 mph 2 hours driving

8. How far does a car travel at a rate of 15 miles per hour for 2 hours? far = Distance Rate = 15 miles per hour Time = 2 hours Distance = (15)(2)

9. Distance = 30 miles

10. The expression 2r can be used to find the diameter of a circle, where r is the length of the radius. Find the diameter of the swimming pool. Radius = 15 feet 2(15) = Diameter 30 feet

11. The expression 2r can be used to find the diameter of a circle, where r is the length of the radius. Find the diameter of the swimming pool. Radius = 15 feet 30 feet = diameter

12. The expression 2r can be used to find the diameter of a circle, where r is the length of the radius. Find the diameter of the circle. Radius = 12 cm Diameter = ???

13. 2(12 cm) = Diameter 24 cm = Diameter

14. The expression 2r can be used to find the diameter of a circle, where r is the length of the radius. Find the diameter of the circle. Radius = 12 cm Diameter = ??? D = 24 cm