1. We know that 30% expressed as a decimal is 0.30
Since 30% of people were using the internet, 0.30*3200 is our answer.
3200*0.30= 960.
Therefore 960 people were using the internet out of the 3200 surveyed.
        
             
        
        
        
Answer:
20 degrees
Step-by-step explanation:
every triangle had 3 angles that all add up to 180
the problem gives you two angles which are 120+40 which is 160
180-160 is 20 degrees which is whi it is the answer
 
        
             
        
        
        
Answer:
The perimeter is 7 dm
Step-by-step explanation:
we know that
The Triangle Inequality Theorem states that the sum of the lengths of any two sides of a triangle is greater than the length of the third side.
Let
c------> the length of the third side
case a) 
1+c>3
c>2 dm
case b) 
1+3> c
4 > c
rewrite
c<4 dm
The solution for c is the interval------> (2,4)
therefore
the value of c must be equal to
c=3 dm (because is an integer)
The perimeter is equal to
P=1+3+3=7 dm
 
        
             
        
        
        
Answer:E
Step-by-step explanation:
 
        
             
        
        
        
Answer:
1/2
Step-by-step explanation:
First create like dominators
2/3 -1/6  = 4/6 - 1/6 
simplify using subtraction
4/6 - 1/6 = 3/6
Simplify the answer
3/6 = 1/2