3d + 6 = 12
Please solve for D!

value of D is 2 as 3(2)+6=12

d=2

Step-by-step explanation:

3d + 6 = 12

first subtract 6 from both sides

3d=6

divide by 3 on both sides

d=2

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

answer is because 4×10=40

and 98×4= is 392

40,392