Respuesta :

TSO
is means equal

of means multiplication

so

20 = 40% x a

40% = 40/100 = 4/10 = 2/5

So

20 = 2/5 x a

Multiply both sides by 5/2

20 x 5/2 = a

10 x 5 = a

a =50

So your final answer is [tex]\boxed{\bf{50}}[/tex]

Answer:

50

Step-by-step explanation:

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