Answer:
10
x
5
A
−
5
x
4
A
+
15
x
A
Step-by-step explanation:
 
        
             
        
        
        
So, I'm assuming that the x represents multiplication...
Because multiplication has a higher precedence over addition, we'll multiply the numbers first:
18 + 48
Then we simply add:
66
        
                    
             
        
        
        
1 hour = 60 minutes, so 3 hours = 3 * 60 = 180 minutes.
 Her total time was 3 hours and 28 minutes, so 180 + 28 = 208 minutes.
Divide her total time by total miles run:
208 minutes / 26 miles = 8 minutes per mile.
 
        
                    
             
        
        
        
 16x - 5y = -33               First, you subtract 16x from both sides of the 
<u>-16x           -16x       </u>      equation
         <u>-5y</u> = <u>-16x -33</u>       Next, you divide both sides of the equation by -5 to 
          -5          -5            make "y =" form
            y = 16/5x + 33/5