Question

Explain how you got your answers

1. The temperature falls from 3 degrees Celsius to -4 degrees Celsius. What is the difference in these temperatures?

2. He water level is 3 feet below your dock. The ride goes out, and the water level lowers 1 foot. A storm surge comes in, and the water level rises 2 feet. Write and solve an equation to represent the new water level.

Answer 1

Answer: 1) 7......2) 3-1+2=N (new water level)

Explanation:

Answer 2

1) 7......2) 3-1+2=N (new water level)

Explanation:

1) if you use a number line you just have to count backwards from 3 to -4

3 2 1 0 -1 -2 -3 -4

2) the water starts at 3ft then you take away 1ft then add another 2ft to get N the new water level