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cabeza: x
cuerpo: 4x
cola: x + 2
RESOLUCIÒN:
cabeza + cuerpo + cola = 22
x + 4x + x + 2 = 22
6x + 2 = 22
6x = 22 - 2
x = 20/6
x = 10/3
x = 3.33 libras. (cabeza)
4x = 4(10/3) = 40/3 = 13.33 libras (cuerpo)
x + 2 = 10/3 + 2 = 16/3 = 5.33 libras (cola)
Peso de la cola: ``x + 2´´
Peso del cuerpo: ``4x´´
x + (x + 2) + 4x = 22
6x + 2 = 22
6x = 22 - 2
6x = 20
x = 20/6
x ≈ 3,33 Libras
x + 2 = 3,33 + 2 = 5,33 Libras
4x = 4* 3,33 = 13,33 Libras
La cabeza pesa 3,33 libras.
La cola pesa 5,33 libras.
El cuerpo pesa 13,33 libras.
3,33 + 5,33 + 13,33 = 21,99 ≈ 22 libras. √ Correcto.