Answer:
10
Step-by-step explanation:
First you set 3x - 11 to x + 9
Than subtract x from both sides.
Than add 11 to both sides.
Than divide both sides by 2.
3x - 11 = x + 9
2x - 11 = 9
2x = 20
x = 10
All sides are equal in rhombus
3x - 11 = x +9
3x - x = 9 +11
x = 20/2
19 km
Step by step explanation:
350mlliliters = 0.35liters
9liters = 9000milliliters
57°
LHS angle=RHS angle=57° (vert. opp angles)
