Answer:
26.6 minutes
Step-by-step explanation:
Set up a proportion
3/8 = 10/x
cross multiply
3x = 80
x = 26.6
 
        
             
        
        
        
so we have a table of values, with x,y coordinates, so let's use any two of those points to get the slope of the table and use the point-slope form to get its equation
![~\hspace{2.7em}\stackrel{\textit{let's use}}{\downarrow }\qquad \stackrel{\textit{and this}}{\downarrow }\\\begin{array}{|lr|r|r|r|r|}\cline{1-6}x&0&1&2&3&4\\y&-1&3&7&11&15\\\cline{1-6}\end{array}\\\\[-0.35em]\rule{34em}{0.25pt}\\\\(\stackrel{x_1}{1}~,~\stackrel{y_1}{3})\qquad(\stackrel{x_2}{4}~,~\stackrel{y_2}{15})](https://tex.z-dn.net/?f=~%5Chspace%7B2.7em%7D%5Cstackrel%7B%5Ctextit%7Blet%27s%20use%7D%7D%7B%5Cdownarrow%20%7D%5Cqquad%20%5Cstackrel%7B%5Ctextit%7Band%20this%7D%7D%7B%5Cdownarrow%20%7D%5C%5C%5Cbegin%7Barray%7D%7B%7Clr%7Cr%7Cr%7Cr%7Cr%7C%7D%5Ccline%7B1-6%7Dx%260%261%262%263%264%5C%5Cy%26-1%263%267%2611%2615%5C%5C%5Ccline%7B1-6%7D%5Cend%7Barray%7D%5C%5C%5C%5C%5B-0.35em%5D%5Crule%7B34em%7D%7B0.25pt%7D%5C%5C%5C%5C%28%5Cstackrel%7Bx_1%7D%7B1%7D~%2C~%5Cstackrel%7By_1%7D%7B3%7D%29%5Cqquad%28%5Cstackrel%7Bx_2%7D%7B4%7D~%2C~%5Cstackrel%7By_2%7D%7B15%7D%29)

 
        
             
        
        
        
Answer:
Option (1)
Step-by-step explanation:
x               -2              -1                 0                    1                   2
y               10            2.5                0                  2.5                3.0
Ist difference,

     

     
     = -2.5

     
     = 2.5

     
     = 7.5
2nd difference,

     
     = 5

     
     = 5

     
     = 5
Since 2nd difference is common, given table represents a quadratic equation.
Let the equation is,
y = ax²+ bx + c
For a point (0, 0) passing through the quadratic equation,
0 = c
Therefore, quadratic equation is y = ax² + bx
Since ordered pair (-1, 2.5) passes through the graph of the function,
2.5 = a(-1)² + b(-1)
a - b = 2.5 ------(1)
For another point (1, 2.5)
2.5 = a(1)² + b(1)
a + b = 2.5 ------(2)
By adding equations (1) and (2),
2a = 5
a = 2.5
and from equation (2)→ y = 0
Therefore, equation of the quadratic function given in the table is y = 2.5x²
Option (1) is the answer.
 
        
             
        
        
        
That you and her have a 50% chance of winning.
 
        
             
        
        
        
There is not enough information given in what you have said to find the number of tiles. We need either the area or dimensions of the kitchen to find the information you are looking for.