Andrea watched 10 videos online this week. the documentaries are 1 hour long, the cartoons are 20 minutes long, and the vine compilations are 15 minutes long. since she was studying most of the time, the number of documentaries she watched was equal to the number of times she watched the other two types of videos combined. she watched videos for a total of 6 hours and 20 minutes. how many of each type of video did she watch?

step-by-step explanation:

try remembering the steps

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

no

step-by-step explanation:

b. b < 1 might be the correct answer