1.77245385
that is the answer
        
                    
             
        
        
        
Answer:
x is mL of 25% acid and y is mL of 50% acid
We set up 2 equations:
A) x + y = 250
B) .25 x + .50y = .35 * 250 which equals
B) .25x + .50y = 87.50  Multiplying A) by -.5 
A) -.5x -.5y = -125  adding the equations we get
-.25x = -37.50
x = 150 mL
y = 100 mL
Source:  http://www.1728.org/mixture.htm
Step-by-step explanation:
 
        
             
        
        
        
The equation that represents profit is $40x - $20. 
The profit after 5 days in business is $180. 
The profit after 10 days in business is $380. 
The profit after 10 days in business if revenue is $45 is $430. 
<h3>What is profit? </h3>
Profit is total revenue less total cost. 
Profit = total revenue - total cost 
Profit = $40x - $20 
Where: 
x = number of days
<h3>What is the total profit after 5 days and 10 days? </h3>
$40(5) - $20
 = $200 - $20 
= $180
$40(10) - $20 
$400 - $20 
$380
<h3>What is total profit if revenue is $45? </h3>
$45(10) - $20 
= $450 - $20 
= $430 
To learn more about profit, please check: brainly.com/question/26181966
 
        
             
        
        
        
As we know that angle of semi circle is 180°.
Here,
FLG = 40°
GLH = ?
HLJ = 60°
FLG + GLH + HLG = 180°
40° + GLH + 60° = 180°
GLH + 100° = 180°
GLH = 180° - 100°
GLH = 80°
Now, 
FLH = 40° + 80° = 120°





 
        
             
        
        
        
36%
Hope this is right im only 11  :)