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

D is equivalent to the expression.

Explanation:

The expression that is given equals 2.8, or 2.8x.

A. This expression equals 1.6x, and 1.6x is not equivalent to 2.8x

B. 0.3x + 3.1 = 3.4x. This doesn't have the answer of 2.8x.

C. 1.3 - 0.3x = 1 or x.

D. 3.1 - 0.3x = 2.8x. D is the answer.