Question

The outside temperature yesterday was -13.4°F. The following day, the temperature increased by 9.8°F. Write an addition expression to describe the change in temperatures. Then, determine the final outside temperature on the second day.

a. -13.4 + 9.8 = Final temperature
b. -13.4 - 9.8 = Final temperature
c. -13.4 × 9.8 = Final temperature
d. -13.4 ÷ 9.8 = Final temperature

Answer 1

The correct addition expression for the increase in temperature is '-13.4 + 9.8 = Final temperature.' Calculating this yields a final temperature of -3.6°F.

Step-by-step explanation:

To describe the change in temperature when the outside temperature increased by 9.8°F from -13.4°F, we use the following addition expression:

a. -13.4 + 9.8 = Final temperature

Let's calculate the final temperature on the second day:

-13.4°F + 9.8°F = -3.6°F

So, the final outside temperature on the second day would be -3.6°F.

Now, let's address some additional temperature-related questions for context and learning:

1. Temperature in degrees Fahrenheit can be converted to Celsius by subtracting 32 and then dividing by 1.8. For example, to convert 88°F to Celsius:

(88 - 32) / 1.8 = 56 / 1.8 = 31.111°C

1. The Celsius scale is sometimes called "centigrade" because it was originally based on 100 degrees between the freezing point (0°) and boiling point (100°) of water at sea level air pressure.