Answer:
21.50
Step-by-step explanation:
[tex]let \: the \: number \: = y \\ half \: the \: number = \frac{y}{2} \\ \frac{y}{2} + 5.75 = - 5 \\ \frac{y}{2} = - 5 - 5.75 \\ \frac{y}{2} = -10.75 \\ crossmultiply \\ y = 2 \times -10.75 \\ y = -21.50[/tex]
