Lin has a drawing with an area of 12 in2. If she increases all the sides by a scale factor of 5, what will the new area be?
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Answer:
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you need to be consistant when setting up the proportions. The times always need to be on top and the days needs to always on bottom.
Cross multiply and solve for the variable.
20(30) = 5(m)
600 = 5m
120 = m
So, in 30 days the theatre showed 120 movies.