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:
Step-by-step explanation:
1. 1/5
2. 2/5
Answer:
that is the ten thousands place
Step-by-step explanation:
total 22 marbles, green and white ones are 5 so 22-5=17 so 17/22 or 17 out of 22
Answer:
,
Step-by-step explanation:
The equations of volume and surface area are presented below:
The length of the tank is:
The expression fo the surface area is therefore simplified into an univariable form:
The first and second derivatives of the expression are, respectively:
The first derivative is equalized to zero and length of the square side is now found:
Now, the second derivative offers a criteria to determine if solution leads to an absolute minimum:
(Absolute minimum)
The depth of the tank is: