The ratio of the length to width in a full-size cello is approximately 8 to 3. what is the width of a full-size cello that is 45 inches long? (you must use a proportion to solve) pls show work and explain i’m confused

w = 16.875 inches

Step-by-step explanation:

Given that the ratio of the length to width in a full-size cello is approximately 8 to 3.

This will be a constant for all cellos

Using the above we can find out length if we know width and vice versa.

Here we know the length = 45 inches

Since

BY cross multiplication we find that

8w = 3(45)

Or w = 16.875 inches

Verify:

Let us check our answer by comparing with proportion

l/w = 45/16.875 = 8/3

Hence our answer is right

both equations and proportions are better.