Question

Which expression is equivalent to 2.2 - 0.5(0.6x - 1.8) ?

a. 0.3x + 1.3
b. 0.3x + 3.1
c. 1.3 - 0.3x
d. 3.1 - 0.3x

Answer 1

Answer: the answer is D.

Explanation:

2.2-0.5 (0.6x-1.8)

2.2-0.3x+0.9

3.1- 0.3x

Answer 2

2.2 - 0.5(0.6x - 1.8)
2.2 - 0.5(0.6x) + 0.5(1.8)
2.2 - 0.3x + 0.9
-0.3x + 2.2 + 0.9
-0.3x + 3.1

The answer is B.