Un fabricante de lavadoras gana 54€ por cada electrodoméstico que instala correctamente y pierde 60€ cada vez que debe retirar uno defectuoso. En una semana instala 2000 lavadoras y obtiene 94320€ de beneficio. ¿Cuantas lavadoras correctas y defectuosas ha instalado?

y= -

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol