miguelfdezcp00 miguelfdezcp00
  • 23-02-2021
  • Spanish
contestada

En la granja se han envasado 300 L de leche en 120

botellas de 2 y 5 L. ¿Cuántas botellas de cada clase se han

utilizado?​

Respuesta :

eduartspineda
eduartspineda eduartspineda
  • 23-02-2021

Answer:

2X + 5Y = 300 (1)

X + Y = 120 (2)

DE 1 despejas x

X+Y = 120

X = 120 - Y (3)

Reemplazas en (1)

2X + 5Y = 300

2(120-Y) + 5Y = 300

240 - 2Y + 5Y = 300

3Y = 300- 240

3Y = 60

Y = 60/3

Y = 20

Reemplazas en (3)

X = 120 - Y

X = 120 - 20

X = 100

¿cuantas botellas de cada clase se han utilizado?

R. 100 botellas de 2 litros y 20 botellas de 5 litros

Answer Link

Otras preguntas

i need help plzz with hw​
10 point question......
[Help, Help, Help! Stoichiometry and Gases, please explain]The following reaction takes place at STP. 4.40 L of nitrogen gas are formed. How many grams of ammon
The dot plots show the number of first cousins the boys and girls in Miss Campbell‘s class have. Based on the dot plot, which sentence is true?
What is the approximate volume of a 3-liter bottle of soda to the nearest tenth of a gallon? (1 gallon ~ 3.8 liters)
I need it badly as soon as possible if you can ASAP
How did the efforts of Jane Addams differ from the efforts of Lincoln Steffens? Addams worked to preach social justice; Steffens worked to help the less fortuna
Is health care delivery a business venture?
draw the Punnett squares and write out the phenotypes pls ??☺​
The ratio of feet to yards is 3 to 1. Reyna threw a ball 30 feet. How many yards did she throw it?