SOLUTION: If 220 students are for 11 teachers , how many students are needed for 7 teachers

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Question 1004650: If 220 students are for 11 teachers , how many students are needed for 7 teachers
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Write the proportion
220%2F11+=+x%2F7
Then
20+=+x%2F7
and
x = 140 students