Susana compro una estufa por la cual pago 7850$ si ledescontaron el 20% ¿cual era el costo inicial de la etufa?

9812,5$

Step-by-step explanation:

Si la estufa cuesta 7850$ con un 20% de descuento, significa que 7850% es un 80% del costo inicial, por lo tanto se tiene la siguiente relación:

Despejando x de la relación se tiene que

Por lo tanto el costo inicial de la estufa sin el descuento del es

d

step-by-step explanation:

by observation, we can see that the the graph is simply the graph of y = |x| that has been shifted 4 units downwards and 3 units to the left.

we can recognize in choice d :

y = | x + 3 |   - 4 (rewriting in general form)

y = | x - (- 3) |   - 4

the "-4 " term means   that the graph has been shifted by 4 units in the negative y direction

the "-3 " term means   that the graph has been shifted by 3 units in the negative x direction

this matches our observation of the graph described above.

i think it is 70

step-by-step explanation: