Answer: $36.69
Step-by-step explanation:
Okay, so let's first write the equation:
2.59*10 + 3d = 135.97
Now, let's work on isolating d by first simplifying the equation:
25.9 + 3d = 135.97
25.9 + 3d - 25.9 = 135.97 - 25.9
3d = 110.07
3d/3 = 110.07/3
d = 36.69
Okay, now let's check:
2.59*10 + 3*36.69  = 135.97
25.9 + 110.07 = 135.97
135.97 = 135.97
Okay, so so it costs $36.69 per pair of shoe. 
 
        
             
        
        
        
Answer:
You classify numbers by looking at which numbers are even, odd, the greatest, and the least
 
        
             
        
        
        
Answer:
y = 1/2
Step-by-step explanation:

A matrix multiplied by its inverse gives the identity matrix;
Based upon knowing this:
6(-1) + 14y = 1
14y = 7
y = 1/2
 
        
             
        
        
        
I would use algebra to solve this:
let the amount of child ticket sold be x and the amount of adults ticket sold be 2x
so 2x•9.60+ x•6.30 = 969.00
19.2x+6.30x = 969.00
25.5 x =969.00
x=38
hence ans is 38
an alternative solution would be:
9.60×2 + 6.30 = 25.5
969.00÷25.5= 38
the methods are actually almost the same.
        
             
        
        
        
Answer:
Jeff has 70 dollars, he spends none of it. He still has 70 dollars.
Step-by-step explanation: