Answer:
x=10 
Step-by-step explanation:
Lets use a ratio.
3:2 (12 to 8)
We need to scale the x+4 up 3/2 to be equal to 2x+1
(3/2) x+4 = 2x+1
1.5x+6=2x+1
-1.5x    -1.5x
6=0.5x+1
-1          -1
0.5x=5
x=10 
 
        
             
        
        
        
Answer:
$872
Step-by-step explanation:
Simple interest = Principle * Rate * Time / 100
= ( 800 * 6 * 18/12 ) / 100
= $ 72
The balance after 18 months = principle + interest
= 800 + 72
= $ 872
 
        
             
        
        
        
Hi there!

Begin by evaluating f - g:
4n - 5 - (n² - 5)
Simplify:
4n - 5 - n² + 5  = 4n - n²
Or it can be written as -n² + 4n to match the first answer choice. 
 
        
             
        
        
        
Equation::
value + value = value
80x + 60(50-x) = 74*50
----
80x + 60*50 - 60x = 74*50
----
20x = 14*50
x = 35 lbs (amt. of 80 cent tea to use)
50-x = 15 lbs (amt. of 60 cent tean to use)
        
             
        
        
        
Answer:
50.24
Step-by-step explanation:
pi times r^2