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Answer:
I am pretty positive it is thirty if you need work shown just let me know if it is wrong for some reason then I apologize.
Step-by-step explanation:
If the model is 15 inches. Then the length of the table will be 10 feet.
What is dilation?
Dilation is the process of increasing the size of an item without affecting its form. Depending on the scale factor, the object's size can be raised or lowered.
A table blueprint uses the scale 3 inches :2 feet.
The scale factor will be 2 feet: 3 inches.
If the model is 15 inches.
Then the length of the table will be
⇒ (2 feet/ 3 inches) x 15 inches
⇒ 2 x 5
⇒ 10 feet
More about the dilation link is given below.
https://brainly.com/question/2856466
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