Lights flash every four seconds. the store owner turns on the lights. After how many seconds Will all three lights flash at the same time for the first ...
        
             
        
        
        
Answer:
x+y=-1
Step-by-step explanation:
 
        
             
        
        
        
9514 1404 393
Answer:
   5/3
Step-by-step explanation:
The prime factorizations are ...
   10 = 2·5
   12 = 2·2·3
Then *10* = 5 and *12* = 3, so *10*/*12* = 5/3.
 
        
             
        
        
        
Answer:
19 or 18
 or 18
Step-by-step explanation:
First, add the whole numbers
3, 7, and 8
18
Add the fractions
 +
+ =
=
IF YOU WANT SIMPLIFIED NUMBER DO THIS
 =1
=1
18+1 =19
=19