Answer:
Se requiere un 20 por ciento de descuento.
Step-by-step explanation:
(This exercise has been presented in Spanish and for that reason explanation will be held in the same language)
Sea 
el precio original del computador portatil, el nuevo precio es:
Si 
, entonces el porcentaje requerido para recuperar el precio original es:
Se requiere un 20 por ciento de descuento.
Answer: 6.5? I think this is the answer but not sure.
2x + 8y = 5
2/ 24x - 4y = -15
2x + 8y = 5
48x - 8x = -30
+
--------------------------
50x = -25
x = -1/2
2 * -1/2 + 8y = 5
-1 + 8y = 5
8y = 6
y = 6/8
y = 3/4
x = -1/2 y = 3/4
Answer:
864 cm
Step-by-step explanation:
