Answer:
A) 10
Step-by-step explanation:
again, similar objects means that all corresponding pairs of lines have the same scaling factor.
in VMN MN is the shorter leg, MV is the longer leg.
in VUT UT is the shorter leg, UV is the longer leg.
so,
MN corresponds with UT.
MV corresponds with UV.
VN corresponds with TV.
M to U.
T to N.
V to V.
UV/MV = 27/9 = 3
and so,
UT/MN = 3
(3x - 9)/7 = 3
3x - 9 = 7×3 = 21
3x = 30
x = 10
