Answer:
1. 20 by 6 
2. 20 by 8
3. 6 by 10
4. 6 by 40
Step-by-step explanation:
just do 2/3 of each number then that is the new number.
1/3 of 30 is 10, so 2/3 is 20.
and so on 
 
        
             
        
        
        
Answer:
Numbers of pitchers of lemonade = 8
Step-by-step explanation:
Given as
Amount of lemonade concentration =  of a cup
 of a cup
Now,   of a cup of concentration mix with
 of a cup of concentration mix with   of water
 of water
So,   -
 -   =
 =   of cup of lemonade,
 of cup of lemonade,
∴ The number of small pitcher of lemonade =  
                                                                          =  4 × 2 = 8    Answer            
 
        
             
        
        
        
Answer:
A. (4,1)
Step-by-step explanation:
2x -5y = 3
x -3y = 1
Change the equation to isolate a variable so you can substitute it in the other one.
x = 1+3y so
2(1+3y) -5y = 3
2 + 6y -5y =3
2 + y = 3
y=1
Back to the easy equation we isolated
x = 1+3(1)
x= 4
(4,1) is a point where x=4 and y=1
hendikeps2 and 22 more users found this answer helpful
THANKS 
13
5.0
(9 votes)