riquito07 riquito07
  • 11-05-2022
  • Mathematics
contestada

the sum of 5.75 and half of a number is -5. what is the number?

Respuesta :

princechimezirim096
princechimezirim096 princechimezirim096
  • 11-05-2022

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]

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