Bryan and seth are both members of the same private social networking site. bryan’s membership plan can be expressed with the function y = 9.50x + 22, where x is the number of months that he is a member and y is the total cost. seth’s membership fees are shown in the graph. if x represents the number of months that they are members of the social networking site, how much will bryan and seth each pay after 15 months of membership?

After 15 month of membership, Brian will pay $164.5 and Seth will pay $100.

Step-by-step explanation:

Brian

y=9.50(15)+22

y=142.5+22

y=164.5

Seth

(15,100)

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

$5.41

step-by-step explanation:

$20 - $14.51 = $5.49.