Ellie had five times as much money as Jacob. After giving $18.60 to Jacob, Ellie had twice as much money as Jacob and $12.90 more than Lily. How much money does Lily have? I'm not sure how to solve this, help would be appreciated! Thank you.

ellie =5 jacob

5jacob-18.6=2jacob

5jacob-2jacob=18.6

3jacob=18.6

jacob=18.6/3

=6.2

ellie=lily+12.9

ellie=5×6.2

=31

lily=31-12.9

=18.1

-18

step-by-step explanation:

because mean value defines that total sum value over total number of set

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl