The number of people who will go through the security system in 150 seconds will be 73.
A ratio is an ordered set of integers a and b expressed as a/b, with b never equaling 0. A proportional is a mathematical expression in which two things are equal.
At the main entrance, fans go through the security system at a rate of 22 people in 45 seconds.
At that rate, the number of the people will go through the security system in 150 seconds will be
Let x be the number of the people.
x/150 = 22/45
x = 73.33
x ≅ 73
Then the number of people will be 73.
More about the ratio and the proportion link is given below.
https://brainly.com/question/14335762
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