blueprints?

Question

On the blueprint of Laurens new office building, the scale is 3 in. equals 8 ft. What will be the actual length of Laurens office if it measures 6in. long on the blueprint?

Answer 1

I'm sorry, and I mean no offense; but this is middle school math. If 3 = 8, then one HOPEFULLY assumes that 6 = 16. Sigh.

Answer 2

No Offense, just like DOC, but get some math help. I'm assuming this is homework. Personal one on one help, so you can understand the concepts, is better than people on the internet.

The concept here is proportional relationships. a:b=c:d, there are several ways to figure it out. In this case,

3in:8 ft=6in:n ft. One way to write it is

3in / 8ft = 6in / n ft

You can cross multiply, so 3n = 48. Divide both sides by 3, n=16.

OR instinctively, if you recognize that 6in is 2x 3in, then n is 2x 8ft, or 16 ft.

But just getting the answer off people isn't fair to yourself, you need to understand the concept. If you don't get the concept, then get some help from parents, friends, tutor.

So what if 1/4 in = 1 ft on a scaled drawing, how long should you draw a line that represents 24 ft ?

Coming back to the question, um, Irv, it's 1/2"=1' Maybe it was just a brain hiccup, but how many 1/2" increments are in 3in? 6, therefore 6 feet drawn to 1/2" = 1' scale is 3in.

Answer 3

Are you sure it's not "3/8' = 1'."
That is an architectural scale and a
16' building doesn't make a whole lot of sense.

Answer 4

3" = 8'
6" = 16'