Answer: -15.625
Step-by-step explanation:
Let w represent the number:
8 (w + 18) ≤ 19
[tex]\frac{8\left(w+18\right)}{8}\le \frac{19}{8}[/tex]
[tex]w+18\le \frac{19}{8}[/tex]
[tex]w+18-18\le \frac{19}{8}-18[/tex]
[tex]w\le \:-\frac{125}{8}[/tex]
-125/8 or -15.625
Check:
[tex]8\left(-15.625+18\right)\le \:19[/tex]
[tex]8\cdot \:2.375 \leq 19[/tex]
[tex]19 \leq 19[/tex]
Therefore, the number is -15.625
