9/15. There are 15 cards and 8 of them are odd and 1 is a 2. 
        
             
        
        
        
Just divide -30 m/s (the change in velocity) by 12 seconds (the time required for the car to come to a stop):
-30 m/s
----------- = - 2,5 m / (sec)^2              (answer)
 12 sec
        
             
        
        
        
Here, 3t - 7 = 5t
5t - 3t = -7
2t = -7
t = -7/2
Then, 6t = 6(-7/2) = 3(-7) = -21
In short, Your Answer would be -21
Hope this helps!
        
             
        
        
        
X=2
y=2 
hope this helps
ps. tiger algebra is a really good website!
        
             
        
        
        
Answer:
16
Step-by-step explanation:
If you flip 4 coins there are 16 possible outcomes
You can determine this by doing  x is 4 in this case
 x is 4 in this case
unless you want all the outcomes... I can answer that if you want
TTTT, TTTH, TTHT, THTT, HTTT, TTHH, THTH, HTHT, HHTT, THHT, HTTH, THHH, HTHH, HHTH, HHHT, HHHH