So let's add variables according to the ratio:
3n + 2n = <span>£80
5n = </span><span>£80
n = 16
3(16):2(16)
48:32
Tom gets </span>£48, and Jerry gets <span>£32</span>
        
                    
             
        
        
        
 i suppose that t is an exponent. so let: v(t)=final prize of the scooter...t=time in years.....p=initial prize of the scooter . r= rate of depreciation per year so v(t)=p(1-r)^t....
        
             
        
        
        
Answer:

Step-by-step explanation:
We will use the co-function identity for sine, where: 

Since sin(21)=0.358=cos(x). This means that: 

Solve for x. Add x to both sides: 

Subtract 21 from both sides: 

Hence: 

 
        
             
        
        
        
2.5 × 10 ↑ -1
Because it moves the decimal place one spot over to the left (because the one is negative), making it 0.25 once again.
        
             
        
        
        
We know that:
1 mile = 5280 ft
1 minute = 60 sec
 
Therefore to convert this we simply use the conversion
factors:
 
(30 ft / s) * (60 s / 1 min) * (1 mi / 5280 ft) = 0.34 mi
/ min
 
 
So we got 0.34 miles per minute.