You might be able to afford to spend 20-30 percent of your income on your mortgage, but perhaps (based on the size of your family) you only really need a scaled-down home that costs 10 percent of your income. Thereâs no reason to buy âmoreâ home than you need, even if you can afford to do so.otice that Ramsey says 25 percent of your take-home income while lenders are saying 35 percent of your pretax income. Thatâs a huge difference! Ramsey also recommends 15-year mortgages in a world where most buyers take 30-year mortgages.
What is a D-U-N-S Number? The D-U-N-S Number is a unique nine-digit number that identifies business entities on a location-specific basis. Assigned and maintained by Dun & Bradstreet (D&B), the D-U-N-S Number is widely used as a standard business identifier. To learn more, visit dnb.com.
The f-number N or f# is given by: where is the focal length, and is the diameter of the entrance pupil (effective aperture). It is customary to write f-numbers preceded by f /, which forms a mathematical expression of the entrance pupil diameter in terms of f and N.