Question

Write an inequality for the situation.

all real numbers y that are less than –3 or greater than 18

A) y < –3 or y < 18
B) y < 18 or y > –3
C) –3 < y < 18
D) y < –3 or y > 18

Answer 1

The answer is D. The numbers for y have to be less than -3, which is shown using the less than sign, and they also have to be greater than 18, which is shown with the greater than sign. 

Answer 2

All real numbers y that are less than -3 means that the values of y need to be less than -3 so;
y<-3.
Next, it is greater than 18 which means the value of y is greater than 18;
y>18
Also, this is known as the compound inequality which you could write as: 1818. In conclusion, D is the only correct answer. Have a nice day!