Answer:
x = 2  y = 3 
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
 
        
             
        
        
        
Answer:
20 5/6 ft
Step-by-step explanation:
5 3/5 = 28/5
1 4/5 = 9/5
V = l * w * h
210 = l * 28/5 * 9/5
210 = l * 252/25
multiply both sides by 25/252
5250/25 = l
Reduce
20 5/6 = l
20 5/6 ft
 
        
             
        
        
        
The total amount shared by the friends illustrates mean and average, and the amount spent by each friend is $11.5
<h3>How to determine the amount?</h3>
The given parameters are:
- Total = $76
 - Tip = $16
 - Number of friends = 8
 
The amount spent by each friend is calculated using:
Amount = (Total + Tip)/Number of friends
So, we  have:
Amount = (76 + 16)/8
Evaluate
Amount = 11.5
Hence, the amount spent by each friend is $11.5
Read more about mean and average at:
brainly.com/question/20118982
#SPJ1
 
        
             
        
        
        
Step-by-step explanation:
2 : 3 = 6 : x ,
Ratio can be written as 
 
2*3 = 6, we multiply top  and bottom of fraction by 3
 
So value of x=9
4 : 7 = x : 42 , 
 
7*6 = 42, we multiply top  and bottom of fraction by 6
 
So value of x=24
2x : 48 = 3 : 12, 
 
\frac{3}{12}[/tex] = 
 
2x= 12, so x= 6
12 : 15 = x : 20
 
 
 
, 
we multiply top  and bottom   by 4/3
  
So value of x=16