3.15 /7 = 0.45
3.20/8 = 0.40
4.10/10 = 0.41
4.80/16 = 0.3
Answer is 1. 7 stamps worth 3.15
Answer:
x=-20
Step-by-step explanation:
Given
-6(x+7)= -4x - 2
First of all, we have to solve brackets
So,
-6x-42=-4x-2
To find the solution of this equation, we have to isolate x on one side of the equation.
Adding 4x on both sides
-6x-42+4x = -2-4x+4x
-2x-42 = -2
Adding 42 on both sides
-2x-42+42 = -2+42
-2x=40
Dividing both sides by -2
-2x/2 = 40/-2
x = -20
The equation has only one solution which is x=-20 ..
A convex figure with three sides is triangle. The sum of the measures of all interior angles of the triangle is 180°.
Let 
be interior angles of this triangle. Then
Find exterior angles of this triangle:
1. 
is exterior angle adjacent to the interior angle 
2. 
is exterior angle adjacent to the interior angle 
3. 
is exterior angle adjacent to the interior angle 
The sum of the measures of all exterior angles is
Answer: 360°
