On the blueprint of their new​ home, Ben and Heather notice the bathtub measures 3 in. by 6 in. They know that the actual bathtub will be 7.2 ft long. How wide will the tub​ be?

Answer 1

First, convert the length of the bathtub from 7.2 ft to inches:
7.2 ft * 12 in/ft = 86.4 in

Now, since the blueprint shows the tub as 3 in by 6 in, we know the actual length is 86.4 in. We can set up a proportion to find the width of the tub:

3 in / 6 in = x / 86.4 in

Solve for x:
3 * 86.4 / 6 = x
x = 43.2

Therefore, the width of the tub will be 43.2 inches.