Given parameters: 
Principal  = £1300
Interest rate  = 5% 
Duration  = 2yrs 
Unknown: 
Total amount of Dan's principal = ? 
To solve this problem, we apply the equation below: 
    Total investment worth  = Principal + interest
    Interest  = 
where P is the principal 
           R is the rate 
           T is the time 
Now, input the parameters; 
      Total investment worth  = £1300 + £ 
                                              = £1300 + £130
                                              = £1430
The amount after two years is £1430
 
        
             
        
        
        
Answer:
$21.67 profit
Step-by-step explanation:
65/1.5 = 43.33 bought for
65.00-43.33 = 21.67 profit
 
        
                    
             
        
        
        
Answer:
{-infinity, infinity}
no solution
Step-by-step explanation:
|x| +15≥4
Subtract 15 from each side
|x| +15-15≥4-15
|x| ≥-11
This is always true so x can be and real number
{-infinity, infinity}
-2|5x+3| = 8
Divide by -2
-2/-2|5x+3| = 8/-2
|5x+3| = -4
This can never happen because absolute values are zero or greater
no solution
 
        
             
        
        
        
10 cars and 10 trains in 100 hours 
it approximately take him 10 hours to build one car and one train  how 6+4=10 how many times can 10 go into 100 10 times hope this helps a little 
 
        
             
        
        
        
Answer:
ST = 12 units
Step-by-step explanation:
As RA is parallel to ET, the angle in R is equal to the angle in T, and the angle in A is equal to the angle in E, so the triangle RAS is similar to the triangle SET.
If RT is 21 units, we have that RS + ST = 21 -> RS = 21 - ST
Using a rule of three with the sides of the triangle (as they are proportional), we have:
RS / ST = AR / ET
(21 - ST) / ST = 6 / 8
4 * (21 - ST) = 3*ST
84 - 4*ST = 3*ST
7*ST = 84
ST = 12 units