5
Answer: DSet 11: Linear Equations
Explanation
Sum of three consecutive odd integers is 57. What is the largest?
Largest integer?
A.
23
B.
17
C.
19
D.✓ Correct
21
Detailed Explanation
Choice D is correct. x + (x+2) + (x+4) = 57. 3 x + 6 = 57. 3 x = 51. x = 17. Integers: 17, 19, 21.
Key Steps:
•
The correct answer is 21
Why others are wrong:
A: Choice A is incorrect and may result from a calculation error.
B: Choice B is incorrect and may result from a calculation error.
C: Choice C is incorrect and may result from a calculation error.
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