Question
The sum of two consecutive numbers is 157. This equation, where n is the first number, represents the situation:
2n + 1 = 157.
What is the first number?
A.
77
B.
78
C.
79
D.
80
2n + 1 = 157.
What is the first number?
A.
77
B.
78
C.
79
D.
80
Answers
GPT-4o mini
To find the first of the two consecutive numbers, we can solve the equation you've provided:
Given the equation:
\[
2n + 1 = 157
\]
To solve for \( n \), we first subtract 1 from both sides:
\[
2n = 156
\]
Next, divide both sides by 2:
\[
n = 78
\]
Thus, the first number is **78**.
The answer is **B. 78**.
Given the equation:
\[
2n + 1 = 157
\]
To solve for \( n \), we first subtract 1 from both sides:
\[
2n = 156
\]
Next, divide both sides by 2:
\[
n = 78
\]
Thus, the first number is **78**.
The answer is **B. 78**.