Solve this system of by rewriting the statements into a set of 2 equations. then solve the equations using the addition method. the sum of two numbers is 21. the difference of the two numbers is 19. what are the two numbers?

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

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100