Final answer:
To find the total number of cameras inspected, set up the equation 20 = 0.052% * x, convert 0.052% to a decimal, isolate x, and solve for x. The total number of cameras inspected is approximately 38,462.
Step-by-step explanation:
To find the total number of cameras inspected, we can set up the following equation:
20 = 0.052% * x
First, we convert 0.052% to a decimal by dividing by 100: 0.052/100 = 0.00052
Next, we isolate x by dividing both sides of the equation by 0.00052: x = 20 / 0.00052 = 38462.5
Therefore, approximately 38,462 cameras were inspected.