Juan inicia una cuenta en el banco con $ 2000 y deposita cada semana $ 1000. Construir una fórmula que permita determinar el dinero que tiene ahorrado en función a las semanas transcurridas?​

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.