Answer:
50
Step-by-step explanation:
30% * n = 15
Change to decimal form
.30 *n = 15
Divide each side by .30
.30n/.30 = 15/.30
n =50
The number is 50
 
        
             
        
        
        
Answer:
I. kinda confused I may be reading it wrong but 3
 
        
                    
             
        
        
        
Answer:
H. 3 units
Step-by-step explanation:
In order to answer this question, we have to apply the formula for the sphere volume. The formula is:

Plugging the given number into V, we calculate that:

If π=3.14, the radius is:
r ≈ 3 units.
 
        
             
        
        
        
Move all terms to one sides
3x^2 - 14x - 5 = 0
Split the second term in 3x^2 - 14x - 5 into two terms
3x^2 + x - 15x - 5 = 0
Factor out the common terms in the first two terms, then in the last two terms;
x(3x + 1) - 5(3x + 1) = 0
Factor out the common term 3x + 1
(3x + 1)(x - 5) = 0
Solve for x;
<u>x = -1/3, 5</u>
 
        
             
        
        
        
The answer would be 2,6 .