Question

Combined Inequalities?

Please help!

1.

Solve the open sentence.

–2 ≤ n + 4 ≤ 7

A.
n ≥ 6 and n ≤ –4

B.
n ≤ 2 and n ≤ 7

C.
n ≤ –6 and n ≤ 4

D.
n ≥ –6 and n ≤ 3

Answer 1

–2 ≤ n + 4 ≤ 7
subtract 4 from each part
-6≤ n ≤ 3

Answer 2

the most accurate would be D, but even D is still wrong because it means 2 separate equation, where as rally it is only one.

Answer 3

I would go with D.