Respuesta :
Answer:
x= 20
Step-by-step explanation:
Information needed:
Complementary angles add up to 90°
Angle ABC= x°
Angle DBC= (3x+10)°
Equation:
x+(3x+10)= 90
Solve:
x+(3x+10)= 90
x+3x+10= 90
4x+10= 90
-10 -10
4x= 80
/4 /4
x= 20
Answer:
x= 20
Step-by-step explanation:
Information needed:
Complementary angles add up to 90°
Angle ABC= x°
Angle DBC= (3x+10)°
Equation:
x+(3x+10)= 90
Solve:
x+(3x+10)= 90
x+3x+10= 90
4x+10= 90
-10 -10
4x= 80
/4 /4
x= 20
