Answer:

Step-by-step explanation:
we know that
The <u>Least Common Multiple</u> (LCM) of a group of numbers is the smallest number that is a multiple of all the numbers.
we have
15,18 and 25
Decompose the numbers in prime factors



Multiply common and uncommon numbers with their greatest exponent
so
The LCM is equal to


 
        
             
        
        
        
Answer:
3x^2
Step-by-step explanation:
3x^2 can be factored out of each
-6x^2 = 3x^2(-2)
21x^3 = 3x^2(7x)
 
        
             
        
        
        
Answer:
1) 600cm^3            2) 10 glasses
Step-by-step explanation:
x = total amount in ml
(3/10)x = 180ml (MILK)
x = 600ml 
(2/10)600 = 120ml (TIA MARIA)
(1/2)600 = 300ml (VODKA)
<em>1) 600cm^3</em>
<em>2) 600ml : 60ml = 10 (GLASSES)</em>