Question

You want to get a photo enlarged. The original was 3 inches wide and 5 inches long. The new photo is 20 inches long, how wide is the photo?
Ms. Sue
Solve the proportion.

3/5 = x/20

3/5=x/20
3(20)=x(5)
60=5x
5x/5=60/5

x=12
A photo with a length of 3 inches and a width of 5 inches is enlarged to poster size. The poster and the photo are similar. The length of the poster is 21 inches. What is the width of the poster?

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