Question

what mistake did elijah make?

choose 1 answer:

a elijah shaded the multiples instead of the factors of 50.

b elijah shaded three numbers, but there are always an even number of factors.

c elijah only shaded the factors of 25 instead of all of the factors of 50.

Explanation:

Identify shaded numbers

The grid shows shaded numbers: \(1\), \(5\), and \(25\).

Analyze the target number

The question asks about finding the factors of \(50\).
Using Factors and Multiples:
The factors of \(50\) are \(1, 2, 5, 10, 25, 50\).

Compare shaded numbers

Elijah shaded \(1\), \(5\), and \(25\).
These are exactly the factors of \(25\).
He missed \(2\), \(10\), and \(50\).

Evaluate the options

Option A: He did not shade multiples (like \(50, 100\)).
Option B: Perfect squares have an odd number of factors.
Option C: He only shaded the factors of \(25\) instead of \(50\).

Answer:

• (A) Elijah shaded the multiples instead of the factors of 50.
• (B) Elijah shaded three numbers, but there are always an even number of factors.
• (C) Elijah only shaded the factors of 25 instead of all of the factors of 50. (Correct answer)