Question
The vertical number line shows the height of a pool above and below the desired height at 0.
Thursday is 3 units above 0 and Wednesday is 2 units below 0.
Which equation shows how to find the distance between the water levels on Wednesday and Thursday?
A.
3
+
(
−
2
)
=
3
+
2
B.
3
−
(
−
2
)
=
3
−
2
C.
3
−
(
−
2
)
=
3
+
2
D.
3
+
(
−
2
)
=
3
−
2
Thursday is 3 units above 0 and Wednesday is 2 units below 0.
Which equation shows how to find the distance between the water levels on Wednesday and Thursday?
A.
3
+
(
−
2
)
=
3
+
2
B.
3
−
(
−
2
)
=
3
−
2
C.
3
−
(
−
2
)
=
3
+
2
D.
3
+
(
−
2
)
=
3
−
2
Answers
GPT-4o mini
To find the distance between the water levels on Wednesday and Thursday, we need to consider the heights of both days: Thursday is at +3, and Wednesday is at -2.
The distance between these two heights can be calculated using the absolute difference between them. Specifically, we can express it mathematically as:
Distance = |Height_Thursday - Height_Wednesday| = |3 - (-2)|
This simplifies as follows:
- First, change the double negative: \(3 - (-2) = 3 + 2 = 5\).
Now, let's review the provided options to find the correct equation:
**A. \(3 + (-2) = 3 + 2\)**
This is incorrect.
**B. \(3 - (-2) = 3 - 2\)**
This is incorrect.
**C. \(3 - (-2) = 3 + 2\)**
This is correct.
**D. \(3 + (-2) = 3 - 2\)**
This is incorrect.
The correct answer is **C. \(3 - (-2) = 3 + 2\)**, as it accurately represents the method to find the distance between the two water levels.
The distance between these two heights can be calculated using the absolute difference between them. Specifically, we can express it mathematically as:
Distance = |Height_Thursday - Height_Wednesday| = |3 - (-2)|
This simplifies as follows:
- First, change the double negative: \(3 - (-2) = 3 + 2 = 5\).
Now, let's review the provided options to find the correct equation:
**A. \(3 + (-2) = 3 + 2\)**
This is incorrect.
**B. \(3 - (-2) = 3 - 2\)**
This is incorrect.
**C. \(3 - (-2) = 3 + 2\)**
This is correct.
**D. \(3 + (-2) = 3 - 2\)**
This is incorrect.
The correct answer is **C. \(3 - (-2) = 3 + 2\)**, as it accurately represents the method to find the distance between the two water levels.