Respuesta :
Answer:
step 3
Step-by-step explanation:
she should have multiplied 15 x 3=45
k=45
In step 3 Olga has done the mistake. Therefore, option C is correct.
The given equation is 1/4(1/3k+9)=6.
We need to find Olga's mistake in the steps.
What is an equation?
A statement that the values of two mathematical expressions are equal (indicated by the sign =).
Now,
Step 1: Cross multiplies 4 to 6.
That is, 1/3k+9=24.
Step 2: Transport 9 to RHS of the equation.
That is 1/3k=15
Step 3: Cross multiply LHS denominator 3 to RHS numerator 15.
That is, k=45.
In step 3 Olga has done the mistake. Therefore, option C is correct.
To learn more about the equation visit:
https://brainly.com/question/10413253.
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