7 critics liked the sequel to My Giant. This represents 10% of all critics. How many critics reviewed it in all?

70 critics.

Step-by-step explanation:

You need to analize the information given in the exercise.

For this exercise let "x" represents the total number of critics that reviewed  the sequel to "My Giant" .

 You know that the total number represents the 100% of those  critics.

 According to the information given in the exercise, you know that the 7 critics that liked the sequel mentioned in the exercise, represents 10% of all the total critics.

Then, keeping the above on mind, you can set up the following proportion:

Therefore, the final step you must apply is to solve for the variable "x" in order to calculate its value.

You get that this is:

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation: