A large community college has professors and lecturers. the total number of faculty is 136. The school reported that they have 6 professors for every 11 lecturers. How many professors does the community college have?
1 answer:
Let's come up with an equation for the numbers. We know that there are 136 faculty members, and there are 6 professors for every 11 lecturers. The equation could look something like this: (6 * x) + (11 * x) = 136. First, combine like terms: 6x + 11x = 136 17x = 136 Now, divide both sides by 17. 17x/17 = 136/17 x = 8. Now, to check, plug in 8 for x in our equation: (6 * 8) + (11 * 8) = 136 48 + (11 * 8) = 136 48 + 88 = 136 So to answer the question, they have 48 professors! :)
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Answer:
20
Step-by-step explanation:
This is a binomial distribution
n = 100; p = 1/5
E(x) = np = (100)(1/5) = 20