Answer:
x = 8/3
Step-by-step explanation:
6x + 4 = 3x + 12
3x + 4 = 12
3x = 8
x = 8/3
 
        
             
        
        
        
Answer:
The answer is 66.6346 round it to what ever place you need to.
Step-by-step explanation:
Take the 56,47, multiply it by .18, and add that value to 56.47 Hope it helps
 
        
                    
             
        
        
        
Answer: then he had $70.80
Step-by-step explanation: 
 
        
                    
             
        
        
        
Answer:
40%.
Step-by-step explanation:
We have been given that an amount of $100 compounded annually is increased to $196 in 2 years. We are asked to find the interest rate.
We will use compound interest formula to solve our given problem.
 , where,
, where,
A = Final amount,
P = Principal amount,
r = Annual interest rate in decimal form,
n = Number of times interest is compounded per year,
t = Time in years.
Upon substituting our given values in above formula, we will get:




Take positive square root of both sides:


Since interest rate is in decimal, form, so we will convert it into percentage as:

Therefore, the interest rate was 40%.