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:
3/20 is the answer.......
Answer:
Solve the 1st equation for y and then you substitute the answer of the y value to the other equation to get the x value
Answer:
The answer is B
Step-by-step explanation:
You add up all the numbers which should be 600 and divide by the total amount numbers used.
600/15=40.
Answer is C as all other choices are even numbers therefore make the equation non-integer.
