Answer:
25,000 grams 
Step-by-step explanation:
Density can be found using the following formula: 

If we rearrange the formula for  , mass, we will multiply both sides of the equation by v.
, mass, we will multiply both sides of the equation by v. 


The mass can be found by multiplying the density by the volume. 
Jeff's density is 1000 grams per milliliter and his volume is 25 milliliters. 

Substitute the values into the formula. 


Multiply. When you multiply, the "mL" or milliliters will cancel out. 


Jeff's mass is 25,000 grams.
 
        
             
        
        
        
Answer:
vertical angles theorem
3x + 4 = 49
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
They say that the sum of the two numbers (x and y) is 64, so we can write our first equation by adding them and setting that sum equal to 64:
x + y = 64
The question also tells us that their difference is 14. Similarly to before, we'll just subtract the two numbers and set that difference equal to 14:
x - y = 14
Now from here, you know how to continue with substitution to find the values for x and y. Just remember when you get a word problem to break it down and look for key words like sum, difference, or product, and from there you'll be able to build your system of equations.
 
        
             
        
        
        
0.057x 10 is equal to .57. All you have to do is move the decimal to the right one time because there is one zero in 10. 
        
             
        
        
        
Answer: X = 0
Let me know if it’s correct