On a winter day the temperature at 6 a.m. was -9° F. At 2 p.m. it was 25° F. By how many degrees did the temperature change from morning to afternoon?

25 + 9 = ?

The temperature in Toronto at noon during a winter day measured 4°C. The temperature started dropping 2° every hour. Which inequality can be used to find the number of hours, x, after which the temperature will measure below -3°C?

To find out how many degrees the temperature changed from morning to afternoon, we need to calculate the difference between the temperature at 6 a.m. and the temperature at 2 p.m.

Step 1: Subtract the morning temperature from the afternoon temperature.
25°F - (-9°F)

Step 2: Simplify the equation.
25°F + 9°F

Step 3: Perform the addition.
34°F

So, the temperature changed by 34 degrees from morning to afternoon.