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Lesson Menu Main Idea and New Vocabulary Example 1:Convert Temperatures Example 2:Convert Temperatures Example 3:Convert Temperatures Example 4:Convert.

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Presentation on theme: "Lesson Menu Main Idea and New Vocabulary Example 1:Convert Temperatures Example 2:Convert Temperatures Example 3:Convert Temperatures Example 4:Convert."— Presentation transcript:

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2 Lesson Menu Main Idea and New Vocabulary Example 1:Convert Temperatures Example 2:Convert Temperatures Example 3:Convert Temperatures Example 4:Convert Temperatures

3 Main Idea/Vocabulary Convert temperatures between the Fahrenheit and Celsius scales. degree Celsius (°C) Fahrenheit (°F)

4 Example 1 Convert Temperatures Complete the conversion. Round to the nearest hundredth if necessary. 68°C = __°F Write the equation. Replace C with 68. Multiply. Simplify. Answer:So, 68°C = 154.4°F.

5 Example 1 CYP A.7.2 B.65 C.81 D.113 Complete the conversion. Round to the nearest hundredth if necessary. 45°C = __°F

6 Example 2 Complete the conversion. Round to the nearest hundredth if necessary. –25°C = __°F Convert Temperatures Write the equation. Replace C with –25. Multiply. Simplify. Answer:So, –25°C = –13°F.

7 Example 2 CYP A.–64.4 B.–32.4 C.–27.8 D.–0.4 Complete the conversion. Round to the nearest hundredth if necessary. –18°C = __°F

8 Example 3 Convert Temperatures SCIENCE The freezing point of salt water is –6° Fahrenheit. Write this temperature in degrees Celsius. Write the equation. Replace F with –6. Simplify. Multiply.

9 Example 3 Convert Temperatures Answer: The freezing point of salt water is about –21.1°C.

10 Example 3 CYP A.–17°C B.–9.4°C C.27°C D.59°C WEATHER The outside temperature is 15° Fahrenheit. Write this temperature in degrees Celsius. Round to the nearest tenth if necessary.

11 Example 4 VACATION Tomas is traveling to New Zealand in March. He read that the average temperature in March is 21° Celsius. Write this temperature in degrees Fahrenheit. Convert Temperatures Write the equation. Replace C with 21. Multiply. Simplify. Method 1 Use the equation F = C + 32. __ 9 5

12 Example 4 Convert Temperatures Write the equation. Replace C with 21. Simplify. Method 2 Use the equation C = (F – 32). __ 5 9 Multiply each side by. __ 9 5 Add 32 to each side. Simplify. 69.8 = F 37.8 = F – 32 + 32 __ 9 5 ● 21 = ● (F – 32) __ 9 5 5 9 21 = (F – 32) __ 5 9 C = (F – 32) __ 5 9

13 Example 4 Answer:The average temperature in March is about 69.8°F. Convert Temperatures

14 Example 4 CYP A.–16°F B.–8.9°F C.28.8°F D.60.8°F WATER The recent temperature of the water along the Pacific coast was 16° Celsius. Write this temperature in degrees Fahrenheit. Round to the nearest tenth if necessary.

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