Answer:
a) $520
b) $580
c) Interest amount is same each year
Step-by-step explanation:
Given - Georgie put $500 in her savings account, earning interest at a rate of 4% each year. She did not make any more deposits or withdrawals. 
To find - a) How much money was in the account after one year? 
               b) How much money was in the account after 4 years? 
               c) Was the amount of money earned in interest the same or different each year?
Proof -
Here given that,
Principal amount = $500
rate of interest = 4% = 4/100 = 0.04
Now,
a)
Amount =  P [ 1 + RT ]
              = 500 [ 1 + 0.04(1)]
              = 500 [ 1 + 0.04] = 520
⇒Amount = $520
b)
Amount =  P [ 1 + RT ]
              = 500 [ 1 + 0.04(4)]
              = 500 [ 1 + 0.16] = 580
⇒Amount = $580
c)
In 2nd year,
Amount =  P [ 1 + RT ]
              = 500 [ 1 + 0.04(2)]
              = 500 [ 1 + 0.08] = 540
⇒Amount = $540
Now,
Interest in 1st year = 520 - 500 = 20
Interest in 2nd year = 540 - 520 = 20
So,
The interest amount  is same each year
 
        
             
        
        
        
Answer:
Ana:48
Lorna:24
Together they are a total of 72 yrs old
 
        
                    
             
        
        
        
Answer: the average speed is 7.5 mph or at least im pretty sure
Step-by-step explanation:
This is because if you make the 2 miles at 6 mph to 1 mile at 3 mph then you get 1 mile at 3mph and 1 mile at 12 mph. now that you have the unit rates of these you can add them. 1 + 1 = 2 miles and 3 + 12 = 15 mph now divide this by two and you get 7.5 mph per mile.
I hope this helped, if it did could you give me a good rating? lol
 
        
             
        
        
        
Answer:
diameter is 16.60 ft
the circumference is 52.12ft
Step-by-step explanation:
Hope this helps!
 
        
             
        
        
        
<span>Let x = 0.5333333333 ... 
So 100x = 53.3333333333 ... 
and 10x = 5.3333333333 ... 
--------------------------------- 
90x = 53 – 5 = 48. 
So x = 48/90 = 8/15 after reduction to lowest terms (by factor of 6) 
0.3333... = ⅓. and that 0.5 = ½. 
So 0.533333... = 0.5 + 0.0333333...0.5 + 0.3333.../10 = 1/2 + (1/3)/10 = 1/2 + 1/30 = 16/30 = 8/15</span>