X - 17 = -57 
 -17. -17
 x = -74 
hope this helps xo
        
             
        
        
        
Answer:
825 g 
Step-by-step explanation:
Here's my work:
500g Cl2 l   1mol Cl2  l  2 mol NaCl   l  58.5 g NaCl
                 l   71 g Cl2    l  1 mol Cl2      l    1 mol NaCl  
= 823.94  - the rounding can be a little off
The first thing you have to do is convert the 500 g of Cl2 into moles.  So you get the mass of Cl which is 35.5, but Cl is diatomic by itself so you multiply 35.5 x 2 and get 71.   now on the third column you are comparing the mol ratios of the equation.  The equation is 2Na + Cl2 ---> 2NaCl, so you see that there is no coefficient in front of Cl2 so that means there is 1 mol, and then you see that in the product there is a  coefficient of 2 in front of NaCl so that means there is 2 moles.  Then finally you have to convert the moles backs into grams where you just add the masses of Na and Cl .  You multiply across the top  and then divide that number by the bottom row.
 
        
             
        
        
        
Answer:
$178.3
Step-by-step explanation:
The value of a car is $20,000
The car loses 10.7% of its value yearly 
Since there are 12 months in a year then 10.7% can be represented as 
10.7%/12
= 0.8916%
Therefore the approximate monthly decrease in value can be calculated as follows
= $20,000×0.8916/100
= $20,000×0.008916
= $178.3
Hence the approximate monthly decrease in value is $178.3
 
        
             
        
        
        
Answer:
Whichever train has the greatest numbers
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Am I missing something to this question?
As pictured, the answer is 12 7/9ths.