If you have 25cm and 20cm for example, you just multiply all the sides to get the area! which in this problem its 25x20=500 cm. ~Hannah G.
30% of 40 is equal to 30 X 40 / 100 = 12 25% of 20 is equal to 25 X 20 / 100 = 5 answer together is 30X40+25X20 / 100 = 17
500
260/500 = 13x20/25x20 = 13/25
Size 25x20 cm.oil on copper : Lgs.260.000.
50x10;; 250x2;; 125x4;; 100x5;; 500x1;; 25x20
If you have 25cm and 20cm for example, you just multiply all the sides to get the area! which in this problem its 25x20=500 cm. ~Hannah G.
I jhave a marlin leveraction 25x20 1894 model in great condition can you give me a range of how much it is worth can send photos
30% of 40 is equal to 30 X 40 / 100 = 12 25% of 20 is equal to 25 X 20 / 100 = 5 answer together is 30X40+25X20 / 100 = 17
referring to several manufacturer's recomendations, (Metal Aire, Titus etc.)for low noise you should use a 25x20 or 24x20 for a low nc. Of course, I'm sure every ac mechanic has his own "rule of thumb" and most would probably say you could get by with a 20x20, true, but again it's all based on air velocity thru the grille which relates to the noise created. Bigger is better. Good idea to line your ra plenum with something like eggcreate foam use on bedding to help with noise. I prefer a 2" pleated filter (no fiberglas) installed in a return air filter grille for easy change outs. They give best performance (dust trapping) for the money.