19. El promedio de las tallas de los jugadores de un equipo de futbol en la cancha es 1,72 m. Después de realizar los cambios, donde se reemplazaron 3 jugadores por otros tres, el promedio pasó a ser 1,70 m. Determine la diferencia de los promedios de las tallas de los jugadores que salieron con los que entraron. *

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.

its kind of blurry. can you put a clearer pic?

step-by-step explanation:

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

ddd

step-by-step explanation: