Respuesta :

Answer: 22

Step-by-step explanation:

Step 1: Our output value is 138.

Step 2: We represent the unknown value with x

Step 3: From step 1 above,138=100%.

Step 4: Similarly, x=22\%(2)

Step 5: This results in a pair of simple equations:

 

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

 

Step 7: Again, the reciprocal of both sides gives

x/138=22/100

x=30.36$

Therefore, $22\%$ of $138$ is $30.36$