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
Tengo = I have to. this is it's translation
A direct object pronoun replaces a direct object, that is a noun that directly receives the action of a verb in a sentence. Moreover, direct object pronouns in Spanish agree in number and gender with the nouns they replace. In the sentence:
<em>Compro </em><em>la gasolina </em><em>en la estación de servicio</em>
<em>La gasolina</em> is the direct object because it receives the action comprar. Since <em>la gasolina </em>stands for the third person singular in feminine form, we need to use the direct object pronoun that matches this person, that is, la. Therefore, the new sentence is:
<em>La </em><em>compro en la estación de servicio</em>
La respuesta es nieve
the answer is nieve