B Hector originally had $60 in his bank account. A buying some books, Hector now has 3 of the original $60. How much does Hector now have in his bank account?

I dont really think this is it but i think its 20

Step-by-step explanation:

60 divided by 3 is 20

0.02040816326

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