A circular pool with a diameter of 18 ft will have a uniform
4 ft concrete walkway poured around it. If the concrete cost $4.25 a square
foot, how much will it cost for the concrete?
This can be solve be solving the area of walkway
Area of walkway is equal to = (pi)( 9 ft +4) ^2– (pi)(9ft)^2
= 276.46 sq ft
Cost = 276.46 sq ft * ($4.25 a square foot) = $1174.70
 
        
                    
             
        
        
        
Answer:
47
Step-by-step explanation:
$460 + $90 = $550
4 x $20 = $80
$550 - $80 = $470
$470/10 = 47
they have to wash 47 cars
 
        
             
        
        
        
Answer:
X = 1.5 if that is your question
Step-by-step explanation:
 
        
             
        
        
        
Y = 4 and x = 1 hope this helps!
        
             
        
        
        
Answer:
C=47
B=133
Step-by-step explanation: