Question

3a. Draw a diagram to represent each of these situations. Then write an addition expression that represents the final temperature. The temperature was 19°F then fell 20°F. * Your answer​

Answer 1

The final temperature after a 20°F drop from 19°F is -1°F, represented by the addition expression 19°F + (-20°F).

Step-by-step explanation:

To represent the temperature change diagrammatically, we can use a simple number line or temperature scale. Initial temperature is at 19°F. When the temperature falls by 20°F, the number line will show a decrease from the initial point. To write an addition expression for the final temperature:

Initial Temperature = 19°F

Temperature Change = -20°F (since the temperature is falling)

Addition Expression: Final Temperature = Initial Temperature + Temperature Change

= 19°F + (-20°F)

= -1°F (This is the final temperature after the drop)