Answer: d = -3
Step-by-step explanation:
2d+3=7d+18
-5d=15
d=-3
 
        
                    
             
        
        
        
To find probability, you'd have to find the total number of marbles (5+3+6+6=20), and since there are 3 blue marbles, the probability of picking one is 3 out of 20, or 3/20
If that blue marble isn't replaced, there will then be 19 marbles, and 2 blue ones. So the probability of him picking another blue marble is 2/19
        
             
        
        
        
Answer:
9 yards 
Step-by-step explanation:
36 divided by 4 = 9 
 
        
                    
             
        
        
        
Answer:
10%
Step-by-step explanation:
60% + 30%=90%
so they have 10%of the original amount left.