Question

Find the length of a picture frame whose width is 3 inches and whose proportions are the same as a 9-inch wide by 12-inch long picture frame.

Answer 1

Answer:

4 inches

Step-by-step explanation:

We can set up a proportion to find out the length value (assuming x is the length of the frame)

$\frac{3}{x} = \frac{9}{12}$

We multiply 12 and 3...

$12\cdot3=36$

And divide by 9...

$36\div9=4$

So, the length of the frame is 4 inches.

Hope this helped!