elenagarcia123
15.02.2021 •
Mathematics
Una cooperativa ha envasado 2000l de aceite en botellas de 1,5l y 2l. Sabemos que han utilizado 1100 botellas en total. ¿Cuántas se han necesitado de cada clase?
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Ответ:
Step-by-step explanation:
x + y = 1100
x = 1100 - y
1.5× x + 2.1 × y = 2000
1.5x + 2.1y = 2000
Substituting
1.5(1100 - y) + 2.1y = 2000
Ответ:
R and T are your answers.
Step-by-step explanation: