(×-1)(×-3)(×+2)
×=1
×=3
×=-2
×1=-2
×2=1
×3=3
        
             
        
        
        
17+4=21 
21 divided by 3= 7
17 dollars for tickets 
21-4=17
so your answer is 21 he has to sweep the floor 21 times to get tickets
        
             
        
        
        
ANSWER
Find out the how much fluid should be drained and replaced with pure antifreeze so that the new mixture is 60% antifreeze .
To proof
let us assume that the fluid should be drained and replaced with pure antifreeze be x .
As given
A radiator contains 10 quarts of fluid, 30% of which is antifreeze. 
Now write 30% in the decimal form

Now write 60% in the decimal form

 After  drained and replaced the fluid with pure antifreeze than the quantity becomes = ( 10 - x )
The quantity of  antifreeze is

The fluid should be drained and replaced with pure antifreeze so that the new mixture is 60% antifreeze .
than the equation becomes

solyving 
100x +300 - 30x = 600
70x = 300

x = 4.28 quarts (approx)
Hence 4.28 quarts (approx) fluid should be drained and replaced with pure antifreeze so that the new mixture is 60% antifreeze .
Therefore the option (c.) is correct .
 
        
                    
             
        
        
        
A number that's bigger than 4.3 is the answer :)
        
             
        
        
        
Answer:
43
Step-by-step explanation:
3x + 10 = 5x - 12
        10 = 2x - 12
       22 = 2x
         x = 11
check: 
33 + 10 = 55 - 12
43 = 43
correct
x = 11 so bring this into 3x + 10
we get 43