2
algebra

If 0.3x+0.2x=50.3x + 0.2x = 5, what is the value of xx?

A

25

B

50

C

1

D

10

Correct Answer: D

Choice Choice D is the correct answer.

  1. Combine: 0.5x=50.5x = 5
  2. Divide by 0.5: x=10x = 10
  3. Verify: 3+2=53 + 2 = 5

Choice Choice B is incorrect because calculation error.

Choice Choice A is incorrect because calculation error.

Choice Choice B is incorrect because calculation error.