Set 16: Linear Equations (Intermediate)

Explanation

Answer: C

If 0. $1x + 0.2x = 0.9$ , what is the value of $x$ ?

0.3

✓ Correct

Detailed Explanation

Choice C is correct. Choice Ahoice B is the correct answer. 1. Combine: $0.3x = 0.9$ 2. Divide by 0.3: $x = 3$ 3. Verify: $0.3+ 0.6 = 0.9$ ✓ Choice Ahoice D is incorrect because it results from an error in the solution process. Choice Ahoice C is incorrect because it results from an error in the solution process. Choice Ahoice C is incorrect because it results from an error in the solution process.

Key Steps:

•

The correct answer is 3

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.

D: Choice D is incorrect and may result from a calculation error.

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