Arianna spends a winter day recording the temperature once every three hours for science class. At 9 am, the temperature was -6.7°F. Between 9am and noon, the temperature rose 10.7°F. Between noon and 3pm, the temperature went up 14.8°F. Between 3pm and 6pm, the temperature decreased by 12.9°F. What was the temperature at 6pm?

We can calculate the temperature at each time step by adding or subtracting the changes.

1. **Initial temperature at 9 am**: \(-6.7^\circ F\)

2. **Between 9 am and noon**:  
   The temperature rose by \(10.7^\circ F\).  
   New temperature:  
   \[
   -6.7^\circ F + 10.7^\circ F = 4.0^\circ F
   \]

3. **Between noon and 3 pm**:  
   The temperature rose by \(14.8^\circ F\).  
   New temperature:  
   \[
   4.0^\circ F + 14.8^\circ F = 18.8^\circ F
   \]

4. **Between 3 pm and 6 pm**:  
   The temperature decreased by \(12.9^\circ F\).  
   New temperature:  
   \[
   18.8^\circ F - 12.9^\circ F = 5.9^\circ F
   \]

Thus, the temperature at 6 pm was \(5.9^\circ F\).

Would you like further details or have any other questions?

Here are five related questions:
1. What would be the temperature at 9 pm if it decreased by 5°F after 6 pm?
2. How would you calculate the average temperature change per hour during the day?
3. If the temperature increased by 7.5°F every hour after 6 pm, what would it be at midnight?
4. What if the initial temperature at 9 am was \(0^\circ F\)? How would the result change?
5. Can you create a temperature graph showing the changes during the day?

**Tip**: Always double-check units (e.g., °F or °C) to avoid calculation errors in temperature problems!

Explore how to calculate temperature changes throughout the day. Arianna records the temperature starting at -6.7°F and tracks it as it rises and falls. Learn step-by-step how to solve this real-world temperature problem with key arithmetic concepts and temperature change formulas. Ideal for Grades 5-6 students.

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