Answer:
6x = 30
Step-by-step explanation:
6x 
Let x = 5
6*5 = 30
6x = 30
 
        
                    
             
        
        
        
15,000/30,000
0.50
50%
Hope this helps!
        
             
        
        
        
<span>copper +copper = copper
0.14x+0.24(100-x) = 0.20*100 = 20</span>
        
             
        
        
        
Answer:
(A)


(B)

(C)

(D)
The high school's enrollment in 2017 is 2500
Step-by-step explanation:
Let's assume time starts since 2009
so, In 2009 , t=0
P=900
In 2012,
t=2012-2009=3
P=1500
(A)
So, we have points as


(B)
we can use slope formula 

we can plug values


we know that 
slope is rate of change of P with respect to time 
so, slope means increase in population is 200 per year
(C)
we can use point slope form of line 





(D)
In 2017 , 
t=2017-2009=8
we can plug t=8
and we get 


The high school's enrollment in 2017 is 2500
 
        
             
        
        
        
Answer:
The answer is 4.5 and 9/2
Step-by-step explanation:
First 
54 / 12 = 4.5
Then 
Change it into a fraction 
Write is fraction form 4.5 / 1
Multiply both numerator and denominator by 10 for every number after the decimal point
4.5 × 10
1 × 10
Which will equal 45/10
Then Reduce the fraction gives 9/2