Answer:
∠ 4 = 130°
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
∠ 4 is an exterior angle of the triangle , so
∠ 4 = ∠ 1 + ∠ 2 ( substitute values )
11x + 9 = 6x + 6 + 4x + 14 , that is
11x + 9 = 10x + 20 ( subtract 10x from both sides )
x + 9 = 20 ( subtract 9 from both sides )
x = 11
Then
∠ 4 = 11x + 9 = 11(11) + 9 = 121 + 9 = 130°
your friend may have only calculated ∠ 1
∠ 1 = 6x + 6 = 6(11) + 6 = 66 + 6 = 72°
Answer:
It should be 324.
Step-by-step explanation:
-20 = -10x juntas -4x y -6x
2 = x divides -20 entre -10
Answer:
$180
Step-by-step explanation:
Interest for 1 year = 10% of $300
Interest for 6 years
= (10% × 6) of $300
= 60% of $300
= (60/100) × $300
= 60 × $3
= $180
So, he will earn $180 as interest in 6 years.
