Question

Is 3 part of the solution set for the inequality six times w is less than or equal to eighteen? Why or why not?

Answer 1

Yes, 3 is a part of the solution set for the inequality;
\[6w \le 18\]
Because the next step is to divide both sides by 6 to get w alone;
\[\frac{ 6w }{ 6 }\le\frac{ 18 }{ 6 }\]
\[18\div6=3\]
So,
\[w \le 3\]
w is less than or equal to 3