2. Section 8.1 Ratio and Proportion
Chapter 8 Similarity
Section 8.1
Ratio and Proportion

3. All Fractions are ratios

4. Example
3(15) = 5(9)
Example

6. 4 qts in gal
1000 mg in a g
16 oz in a 1 lb
3 ft in a 1 yd

7. 12 in. in a ft
24 hours in a day
100 cm in a m
1760 yds in a mi

9. To Solve a Proportion Cross Multiply

10. To Solve a Proportion Cross Multiply

14. Your ratio of inches to total length in feet
Write a Proportion
Your ratio of inches to total length in feet
The given ratio
16x = 560
x = 35
Your model is 35 inches long

15. Your ratio of inches to total length in feet
Write a Proportion
Your ratio of inches to total length in feet
The given ratio
x = 80
The actual sub is 80 feet tall