Respuesta :

wegnerkolmp2741o

Answer:

a = 4/3

Step-by-step explanation:

1/3       a

----- = -----

5        20

Using cross products

1/3 * 20   = 5a

20/3 = 5a

Divide each side by 5

20/3 * 1/5 = 5a/5

4/3 = a

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