Question
The amount of money Joaquin took out of his bank account in January is shown on the vertical number line below.
A point is 20 units below 0.
Joaquin then added $65.71 to his account in February. What was the overall change in Joaquin’s bank account for January and February combined?
A.
−
$
85
.
71
B.
−
$
45
.
71
C.
$
45
.
71
D.
$
85
.
71The amount of money Joaquin took out of his bank account in January is shown on the vertical number line below.
A point is 20 units below 0.
Joaquin then added $65.71 to his account in February. What was the overall change in Joaquin’s bank account for January and February combined?
A.
−
$
85
.
71
B.
−
$
45
.
71
C.
$
45
.
71
D.
$
85
.
71
A point is 20 units below 0.
Joaquin then added $65.71 to his account in February. What was the overall change in Joaquin’s bank account for January and February combined?
A.
−
$
85
.
71
B.
−
$
45
.
71
C.
$
45
.
71
D.
$
85
.
71The amount of money Joaquin took out of his bank account in January is shown on the vertical number line below.
A point is 20 units below 0.
Joaquin then added $65.71 to his account in February. What was the overall change in Joaquin’s bank account for January and February combined?
A.
−
$
85
.
71
B.
−
$
45
.
71
C.
$
45
.
71
D.
$
85
.
71
Answers
GPT-4o mini
To determine the overall change in Joaquin’s bank account for January and February combined, we first need to establish the amounts involved.
1. In January, Joaquin took out $20. This is represented as \(-20\) (since it is money taken out).
2. In February, Joaquin added $65.71 to his account. This is a positive change, so we represent it as \(+65.71\).
Next, we can calculate the overall change by combining these two amounts:
\[
\text{Overall Change} = \text{Change in January} + \text{Change in February}
\]
\[
\text{Overall Change} = -20 + 65.71
\]
Now, we perform the calculation:
\[
-20 + 65.71 = 65.71 - 20 = 45.71
\]
Thus, the overall change in Joaquin's bank account for January and February combined is \(\$45.71\).
The correct answer is:
**C. $45.71**
1. In January, Joaquin took out $20. This is represented as \(-20\) (since it is money taken out).
2. In February, Joaquin added $65.71 to his account. This is a positive change, so we represent it as \(+65.71\).
Next, we can calculate the overall change by combining these two amounts:
\[
\text{Overall Change} = \text{Change in January} + \text{Change in February}
\]
\[
\text{Overall Change} = -20 + 65.71
\]
Now, we perform the calculation:
\[
-20 + 65.71 = 65.71 - 20 = 45.71
\]
Thus, the overall change in Joaquin's bank account for January and February combined is \(\$45.71\).
The correct answer is:
**C. $45.71**