In this first example we'll be using Caesar's Palace as our desired location.
From the Las Vegas Hotels listing page we get the following information:
The part that says "(A-B.9,6.0)" is what we are concerned with. The first letter "A" indicates to use map A from the Las Vegas Maps page. This is the "A - Las Vegas Strip & Airport" map. It is reproduced below.
The B.9 and 6.0 indicate the coordinates to locate Caesars Palace. You can use the part before the decimal points to get a ballpark figure, but we've narrowed it down even more, into tenths for those of you who are sticklers. By drawing a line which intersects these points we can locate the exact spot as indicated on the picture below.
Another Example? The coordinates for the Las Vegas Convention Center are:
The location of this is indicated by the second set of lines on the diagram below.