Question

a scientist measures the depth of water in a pond over a period of weeks.

week	change in depth	depth
2	1.5	feet
3	-1.6	feet
4	-1.3	feet

find the depth of water in the pond for week 2, week 3, and week 4.
drag the correct depth to each row in the table. click or tap the reset button to start over.
-0.1 -1.4
1.5 1.6
2.9 4.5
6.1 7.4

Explanation:

Step1: Calculate Week 2 Depth

Start with Week 1 depth (3 feet) and add Week 2 change (1.5 feet).
$3 + 1.5 = 4.5$

Step2: Calculate Week 3 Depth

Take Week 2 depth (4.5 feet) and add Week 3 change (-1.6 feet).
$4.5 + (-1.6) = 2.9$

Step3: Calculate Week 4 Depth

Take Week 3 depth (2.9 feet) and add Week 4 change (-1.3 feet).
$2.9 + (-1.3) = 1.6$

Answer:

• Week 2 Depth: 4.5 feet
• Week 3 Depth: 2.9 feet
• Week 4 Depth: 1.6 feet