Answer:
9
Step-by-step explanation:
The number of darts that failed to hit the bulls eye is 40% of 15 subtracted from 15
Since 40% of the darts hit the bulls eye . 
Therefore 
40% of 15
40/100 x 15
0.4 x 15
6
This means that 6 darts hit the bulls eye.
Therefore,number of darts that did not hit the bulls eye is
15 - 6 = 9 
9 darts failed to hit the bulls eye 
 
        
             
        
        
        
Answer:
   (a) 315°
   (b) 3°
   (c) 238°
Step-by-step explanation:
Bearings are measured clockwise from north. The triangle described is illustrated in the attachment.
<h3>(a)</h3>
The bearing of P from R is 180° different from the bearing of R from P it will be ...
   135° +180° = 315° . . . . bearing of P from R
__
<h3>(b)</h3>
The bearing of Q from R is 48° more than the bearing of P from R, so is ...
   315° +48° = 363°, or 3° . . . . bearing of Q from R
__
<h3>(c)</h3>
The angle QPR has a value that makes the sum of angles in the triangle equal to 180°. It is ...
   180° -48° -55° = 77°
The bearing of Q from P is 77° less than the bearing of R from P, so is ...
   135° -77° = 58°
As above, the reverse bearing from Q to P is ...
   58° +180° = 238° . . . . bearing of P from Q
 
        
             
        
        
        
I’m not quite sure but I think it could be c. 768