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] = ![\frac{2x}{48}12*4 = 48, we multiply top  and bottom of fraction by 4[tex]\frac{3*4}{12*4} = \frac{12}{48}](https://tex.z-dn.net/?f=%5Cfrac%7B2x%7D%7B48%7D%3C%2Fp%3E%3Cp%3E12%2A4%20%3D%2048%2C%20we%20multiply%20top%20%20and%20bottom%20of%20fraction%20by%204%3C%2Fp%3E%3Cp%3E%5Btex%5D%5Cfrac%7B3%2A4%7D%7B12%2A4%7D%20%3D%20%5Cfrac%7B12%7D%7B48%7D) 
 
2x= 12, so x= 6
12 : 15 = x : 20
  
 
  ,
, 
we multiply top  and bottom   by 4/3
  
So value of x=16
 
        
                    
             
        
        
        
1.5 is lesser than 0.5. Oh, wait nevermind I meant to say -1.5 is lesser than 0.5
 
        
             
        
        
        
250 and - 1250
This is a geometric sequence with common ratio r = - 5
multiply each term by - 5 to obtain the next term
- 50 × - 5 = 250
250 × - 5 = - 1250
the sequence is - 2, 10, - 50, 250, - 1250
 
        
                    
             
        
        
        
Answer:
t H(t) g(t)
1 139 58.7
2 151 97.4
3 131 136.1
4 79 174.8
between 2nd and 3rd both are equal.
it shows they are at same height when t is between 2 and 3
 
        
             
        
        
        
Add the equations.
x-y%2B0.5x%2By=7%2B5
1.5x=12
  
highlight%28x=8%29
Now use either equation to solve for y.
8-y=7
highlight%28y=1%29
x=8
y=1