SOLUTION: In a survey of 400 seniors, x percent said that they plan on majoring physics. One university used this data to estimate the number of physics majors it expects for its entering c

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Question 1120977: In a survey of 400 seniors, x percent said that they plan on majoring physics. One university
used this data to estimate the number of physics majors it expects for its entering class of
3300 students. If the university expects 66 physics majors, what is the value of x?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
In a survey of 400 seniors, x percent said that they plan on majoring physics.
One university used this data to estimate the number of physics majors it expects for its entering class of 3300 students.
If the university expects 66 physics majors, what is the value of x?
:
find the value of x in decimal form
%28400x%29%2F66 = 400%2F3300
Cross multiply
400x * 3300 = 66 * 400
1320000x = 26400
x = 26400%2F1320000
x = .02 * 100 = 2% will be taking physics