Find the missing dimension. Use the scale 1: 15.
Item: Pipe
Model: Length: 5 ft
Actual: Length:___ft

75ft

Step-by-step explanation:

Hello There! With the information given in the problem we can set up a ratio in order to help us solve for the actual length that the model is scaled upon.

This ratio can be written as:

From this we just set up another ratio in relation to the original. In this one we will be solving for x.

 x  

After solving for x we find that the actual model should be roughly 75ft.

Hope this helps!

-HM

a is the correct