Question

Am mare nevoie de ajutor dau coroana!!

Answer 1

a)  4x/3 +5x/3+x=180
(4x+5x+3x)/3=180
12x/3=180 
4x=180
x=45

4x/3=180/3=60
5x/3=225/3 =75  

b) 3x+x+2x-6=180
6x=186 
x=186/6 =31 
3x =93 
2(x-3) =2x-6=62-6=54


Problema 2)
x+x+15 +2x+30 =180
4x=135
A =x=33 grade si 45 minute
B =x+15 =33 grade si 45 minute +15 grade=48 grade si 45 minute
C =2B =(48 grade si 45 minute)x2 =96 grade +1 grad si 30 minute =97 grade si 30 minute