Answer: 565%
Step-by-step explanation: Convert fraction (ratio) 113 / 20 Answer: 565%
 
        
             
        
        
        
Answer:
x=4 and y=1
Step-by-step explanation:
Equation 1) 3x+8y=20   
Equation 2) 5x+3y=23
Equation 1) 5(3x+8y=20 )  
Equation 2) 3(5x+3y=23)
15x+40y=100
15x+9y=69
(Take away 40y from 9y and 100 from 69)
31y = 31
y=1
Substitute y=1 into equation 1)
3x+8=20
(Take away 8 from both sides)
3x=12
(Divide by 3)
x=4
 
        
                    
             
        
        
        
there are 6 terms in the simplified expression
 
        
                    
             
        
        
        
Answer:
Before coming back up to the surface the maximum depth, Cassidy went was 6.25 ft. below the water surface
Step-by-step explanation:
The height of Cassidy's diving platform above the water = 6 ft.
The equation that models her dive is d = x² - 7·x + 6
Where;
d = Her vertical position or distance from the water surface
x = Here horizontal distance from the platform
At Cassidy's maximum depth, we have;
dd/dx = d(x² - 7·x + 6)/dx = 2·x - 7 = 0
x = 7/2 = 3.5
∴ At Cassidy's maximum depth, x = 3.5 ft.
The maximum depth,  = d(3.5) = 3.5² - 7 × 3.5 + 6 = -6.25
 = d(3.5) = 3.5² - 7 × 3.5 + 6 = -6.25
The maximum depth, Cassidy went before coming back up to the surface =  = -6.25 ft = 6.25 ft. below the surface of the water.
 = -6.25 ft = 6.25 ft. below the surface of the water.