Answer:
5.6 miles.
Step-by-step explanation:
7/80=x/64 is our equation
Cross multiply to solve for x
x=7*64/80
x=5.6mi
Hope this helps ^-^
 
        
                    
             
        
        
        
<span>  x - 4y = -5 
-x + 6y = 7
---------------add
       2y = 2
         y = 1
</span>     x - 4y = -5 
  x - 4(1) = -5 
      x - 4 = -5
           x = -1
answer
x = -1 and y = 1
        
             
        
        
        
<h3>
Answer:  -15 and 2</h3>
You find this through trial and error. 
A much more efficient way is to solve x^2-13x-30 = 0 using the quadratic formula. You'll find the two solutions to be x = 15 and x = -2
Going from those solutions, we get x-15 = 0 and x+2 = 0 which then turn into (x-15)(x+2) = 0 through the zero product property.
 
        
        
        
0.78 is what you get when you convert 78% to a decimal. You will take the percent sign off and add a 0. In front of it. 
It will be the same thing with any other two digit number. Let’s say it is 23% and you want to convert it to a decimal, your answer will be 0.23
Hope this helps!!
        
             
        
        
        
She has enough money, the total will be $95 
you add 10+10+75, to get $95