Answer:
the answer is C
Step-by-step explanation:
Vertically opposite angles are congruent to eachother so:
3Y+20=5Y-16
-5Y -20 -5Y -20
-2Y = -36
=-36/-2
Y= 18
B is the answer
Ắner 3x+2y
Step-by-step explanation:
C=number of cars
t=number of trucks
c+t=127=total
if there are 4 more than (+4) 2wice the number of trucks (2 times t or 2t) than are cars (= c) find c and t
4+2t=c and c+t=127
subsitute 4+2t for c
4+2t+t=127
4+3t=127
subtract 4
3t=123
divide 3
t=41
subsitute
t+c=127
41+c=127
subtract 41
c=86
86 cars
41 truckes