Who knows? I suppose you could look up the dimensions of a penny and calculate an answer based on hexagonal packing. But even if you're lazy I think the easiest way to find out (without cheating) is to actually get a stack of pennies and count how many fit on a card, in other words, do the experiment!
200 flies can fit on a 3x5 inch card.
60
1080 = 2^3x3^3x5 200= 2^3x5^2 LCM (1080,200) = 2^3x3^3x5^2 = 1800
Divide the area of the windows by the area of the sheets. Note: 3x5 and 2x4 are not areas, they are numbers. And you don't say how big the sheets are, so it is difficult to be helpful.
3x5
3x5 is the standard size as it closely follows the golden ratio
4^3x5^2
Card Catalog is the guide to the collection of books in a library. it is an alphabetical listing of all the books in the library, together with information on where they maybe located on the library shelves. Catalog card is the 3x5 card or index which consist of clasification numbers and biblioraphical information.
Strictly by area, it would take 115.2 3x5 to cover the 36x48, but using whole cards it would take at least 120.
200 flies can fit on a 3x5 inch card.
There are 15 cells in a 3x5 table, calculated by multiplying the number of rows (3) by the number of columns (5).
60
1080 = 2^3x3^3x5 200= 2^3x5^2 LCM (1080,200) = 2^3x3^3x5^2 = 1800
If you mean "how many 3x5-inch cards cover 300 sq. ft": 1 card = 3*5 =15 sq. in. = 15/144 sq. ft. (12x12 = 144 in^2 = 1 ft^2) N cards *15/144 = 300 N = (300*144)/15 = 2880
(2x3)+(3x5)-(3x2)= 2x3=6 3x5=15 3x2=6 So..... 6x25-6= 6x25=150 150+6=156
Divide the area of the windows by the area of the sheets. Note: 3x5 and 2x4 are not areas, they are numbers. And you don't say how big the sheets are, so it is difficult to be helpful.
1x15 3x5