You are remodeling your home and have selected the following tiling pattern for your kitchen backsplash. Note that all the tiles, regardless of color, are the same size and shape. Your tile professional is almost done with laying the backsplash, but there is one row left to complete; unfortunately, your tile professional ran out of tiles, so you need to purchase more tiles from the store. This missing row is 99 tiles across. How many black tiles do you need to complete the pattern

answer: procent 54 wynosi 33,33%

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb