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casados = 8x
2x+8x= 50
10x= 50
x=50/10
x=5
solteros = 2×5= 10
casados = 8×5= 40
Total personas = 50
Total casados = x
Total solteros = 50 - x
2 50 - x
----- = ----------
8 x
2x = 8(50 - x)
2x + 400 - 8x
2x + 8x = 400
10x = 400
x = 400/10
x = 40
Total casados = x = 40
Total solteros = 50 - x = 50 - 40 = 10
Respuesta.
El total de casados es de 40 personas