The third angle is 60 degrees. A triangle has 180 degrees so 180-30-90=60
 
        
                    
             
        
        
        
Answer:
$51.70 is the original price 
Step-by-step explanation:
Step 1: 
Turn 40% into a decimal which makes it 0.40 
ex. 50% would be 0.50, 5% would be 0.05 etc. 
Step 2:
Put the numbers into this formula: Original Price (x) - Percent Off times Original Price = Sales Price 
x - 0.40x = 31.02  this is basically 1x - 0.40x = 31.02 so,
Solving the left side of our equation gives us 1x - 0.40x = 0.60x 
so now you have: 0.60x = 31.02
Step 3: 
Divide both sides by 0.60 which gets x by itself and gives us the original price which is $51.70 
 
        
             
        
        
        
Answer:
48
Step-by-step explanation:
The sum of angles of a triangle is 180
<V + <P + <M = 180
47+85+x = 180
132 +x = 180
Subtract 132 from each side
132-132+x = 180-132
x =48
 
        
                    
             
        
        
        
-3a=-3-2b
a=1+2/3b
Solution
a=1+2/3b
        
                    
             
        
        
        
Using a calculator, the equation for the line of best fit where x represents the month and y represents the time is given by:
a. y = −1.74x + 46.6
<h3>How to find the equation of linear regression using a calculator?</h3>
To find the equation, we need to insert the points (x,y) in the calculator.
For this problem, the points (x,y) are given as follows, from the given table:
(1, 46), (2, 42), (3,40), (4, 41), (5, 38), (6,36).
Hence, inserting these points in the calculator, the equation for the line of best fit where x represents the month and y represents the time is given by:
a. y = −1.74x + 46.6
More can be learned about a line of best fit at brainly.com/question/22992800
#SPJ1