Abox contains 3 red clips, 4 green clips, and 5 blue clips. one clip is taken from the box and then replaced. another clip is taken from the box. what is the probability that the first clip is red and the second clip is blue?

x is variable or an unknown value to find

example:

2x = 5 which means x = 3

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584