Respuesta :

reinhard10158

Step-by-step explanation:

so, all 3 pieces together are 20 inches.

therefore,

x + 4x + 5x = 20

10x = 20

x = 2

so, the first piece is 2 inches long.

the second piece is 4×2 = 8 inches long.

the third piece is 5×2 = 10 inches long.

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