Answer: She had left 54% of the money which is $1620.
Step-by-step explanation:
40% of $3000 = $1200
15% of $1200 = $180
$3000 - ($1200 + $180)
$3000 - $1380 = $1620
$1620 is the money she had left.
$1620 is 54% of $3000
She had 54% left of the money.
Hope that helped~!
 
        
             
        
        
        
Answer:
Step-by-step explanation:
 
        
             
        
        
        
We have that
 case 1)<span>system of equations is
</span><span>y=−12x−1
y=14x−4
using a graph tool
see the attached figure
the solution of the system  is the point (0.115,-2.385)case 2)
</span>system of equations is
<span>blue line passing through coordinates A (0, -4) and B (4, -3)
</span><span>red line passing through coordinates   C(0, -1) and  D (4, -3)
</span>using a graph tool
see the attached figure
the solution of the system  is the point (4,-3)<span>
</span>
 
        
        
        
Answer: 
The same lines (answer)
Step-by-step explanation:
The equations can be written in slope-intercept form y = mx + c (where 'm' is slope and 'c' is the y-intecept) as,
y-3 = 2(x-3) .......(1)        ;   y + 5 = 2(x+1) ...........(2)     
y = 2x - 6 + 3                ;  y = 2x + 2 - 5     
y = 2x -3                       ;  y = 2x - 3
Comparing with slope intercept form we have,
m1 = 2                           ; m2 = 2 
c1 = -3                           ; c2 = -3 
If the slopes are equal the lines are parallel and since y-intercepts are also equal means they are the same lines (overlapping)
 
        
             
        
        
        
70-40= 30
30/2 = 15
40/2= 20
15 x 20 = 300