Question

The scale on a drawing is 0.5 mm : 4 cm. The height of the drawing is 4.5 millimeters. What is the actual height of the object?

Answer 1

See a solution process below:

Explanation:

First, we can find how many "0.5 mm"# units there are in "4.5 mm" by dividing 4.5 by 0.5:

`4.5/0.5 = 45/5 = 9`

Now, we can multiply each side of the scale by `color(red)(9)` to find the actual height of the object:

`color(red)(9) xx 0.5" mm" : color(red)(9) xx 4" cm"`

`4.5" mm" : 36" cm"`

The actual height of the object is `36" cm"`