Marked down 15% means the new price would be 85% of the original price ( 100%-15% - 85%)
Multiply the original price by 85%:
5250 x 0.85 = 4462.50
The new price is $4,462.50
Annually The amount after 10 years = $ 7247.295
quarterly compound after 10 years = $7393.5
Continuously interest =$7,419
Given:
P = the principal amount
r = rate of interest
t = time in years
n = number of times the amount is compounding.
Principal = $4500
time= 10 year
Rate = 5%
To find: The amount after 10 years.
The principal amount is, P = $4500
The rate of interest is, r = 5% =5/100 = 0.05.
The time in years is, t = 10.
Using the quarterly compound interest formula:
A = P (1 + r / 4)4 t
A= 4500(1+.05/4)40
A= 4500(4.05/4)40
A= 4500(1.643)
Answer: The amount after 10 years = $7393.5
Using the Annually compound interest formula:
A = P (1 + r / 100) t
A= 4500(1+5/100)10
A= 4500(105/100)10
Answer: The amount after 10 years = $ 7247.295
Using the Continuously compound interest formula:
e stands for Napier’s number, which is approximately 2.7183

A= $2,919
Answer: The amount after 10 years = $4500+$2,919=$7,419
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<h3><u>Question:</u></h3>
Ricky rides his bike 12 miles every day. He stops after 7 miles to rest. write and solve an equation to find out how much further he has to ride
<h3><u>Answer:</u></h3>
Ricky has to further ride for 5 miles
<h3><u>Solution:</u></h3>
Given that, Ricky rides his bike 12 miles every day
Let "x" be the remaining distance in miles he has to ride further
Total distance = 12 miles
Also, given that he stops after 7 miles to rest
Therefore, already covered distance = 7 miles
Therefore, we can frame a equation as,
remaining distance + already covered distance = total distance
x + 7 = 12
Solve the above equation for "x"
x = 12 - 7
x = 5
Thus Ricky has to further ride for 5 miles