SOLUTION: Randy used a scale factor of 5:2 to enlarge a photograph. The original dimensions of the photo are 6 cm and 9cm. What are the dimensions of the new photo?

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Question 549883: Randy used a scale factor of 5:2 to enlarge a photograph. The original dimensions of the photo are 6 cm and 9cm. What are the dimensions of the new photo?


Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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Randy used a scale factor of 5:2 to enlarge a photograph.
The original dimensions of the photo are 6 cm and 9 cm.
What are the dimensions of the new photo?
:
Find the new value of one of the dimensions when it is enlarged
5%2F2 = w%2F6
2w = 5*6
2w = 30
w = 15 is the enlarged width
:
Find the relationship to the 2nd dimension
6%2F9 = 15%2FL
6L = 9 * 15
6L = 135
L = 135/6
L = 22.5 is the enlarged length
:
15 by 22.5 is the enlarged dimensions