Step-by-step explanation:
The dimensions of the rectangle are two unknowns: The length "l" and the width "w"
 
The perimeter of a rectangle is found as P = 2*l + 2*w
 
We also know that the length is 5cm more than twice the width. l = 2*w + 5
 
These two equations gives us a system of linear equations.
 
P = 2*l + 2*w
l = 2*w + 5
 
We can use substitution to replace the "l" in the first equation with 2*w + 5
 
P = 2*(2*w + 5) + 2*w
P = 4*w + 10 + 2*w
P = 6*w + 10
 we know the perimeter is 70 
70 = 6* w + 10 
subtract 10 from both sides 
60 = 6* w 
w = 10 
Now that we know the width, we can find the length by substituting 10 for "w" in the second equation.
l = 2* 10 + 5 
l = 20 +5
l = 25 
the dimentions of the rectangle are 25cm x 10 cm
 
        
                    
             
        
        
        
(7,4) they’re both positive numbers
        
             
        
        
        
If 40% of students prefer keyboarding, 40/100*40=16 students like it best. If the remaining students prefer English, then 40-16=24 students like English best. Since 24 is more than 16, most students prefer English.
        
             
        
        
        
Answer:
thats quadrant 2
Step-by-step explanation:
 
        
                    
             
        
        
        
You lose 20%.
 
if it were going up to 72 to 90 it would be a 25% increase