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nataly862011 [7]
3 years ago
15

Three friends decide that they each want to be able to buy a new boat in five years. Vanore puts $1,000 in a savings account wit

h a simple interest rate of 4.5%. Keir invests $1,200 in a standard savers account with a simple interest rate of 4%. Omar invests $950 in a junior achievers account with a 6% annual compound interest rate. Who will have the most money to spend on a new boat at the end of the five years? Use the formula mc019-1.jpg for simple interest and mc019-2.jpg for compound interest. Round to the nearest dollar.
Mathematics
2 answers:
RideAnS [48]3 years ago
8 0

Answer:

Keir will have the most money ($1440) to spend on a new boat at the end of the five years.

Step-by-step explanation:

We have been given that three friends decide that they each want to be able to buy a new boat in five years.

Let us find the money earned by each friend after 5 years.

We will use simple interest formula to find the amount of money earned by Vanore and Keir.

A=P(1+rt), where,

A=\text{Final amount after T years},

P=\text{Principal amount},

r=\text{Interest rate in decimal form},

T=\text{Time in years}

Let us convert 4.5% interest rate in decimal for.

4.5\%=\frac{4.5}{100}=0.045

\text{Amount of money earned by Vanore after 5 years}=1000(1+0.045*5)

\text{Amount of money Vanore will get after 5 years}=1000(1+0.225)

\text{Amount of money earned by Vanore after 5 years}=1000(1.225)

\text{Amount of money earned by Vanore after 5 years}=1225

Therefore, Vanore will have $1225 after 5 years.

Let us convert 4% interest rate in decimal for.

4\%=\frac{4}{100}=0.04

\text{Amount of money Keir will get after 5 years}=1200(1+0.04*5)

\text{Amount of money Keir will get after 5 years}=1200(1+0.2)

\text{Amount of money Keir will get after 5 years}=1200(1.2)

\text{Amount of money Keir will get after 5 years}=1440

Therefore, Keir will have $1440 after 5 years.

We will use compound interest formula to find the amount of money earned by Omar.

A=P(1+\frac{r}{n})^{n*T}, where,

A=\text{Final amount after T years},

P=\text{Principal amount},

r=\text{Interest rate in decimal form},

n=\text{Number of times interest is compounded per year},

T=\text{Time in years}

Let us convert our given interest rate in decimal form.

6\%=\frac{6}{100}=0.06

\text{Amount of money Omar will get after 5 years}=950(1+\frac{0.06}{1})^{1*5}

\text{Amount of money Omar will get after 5 years}=950(1+0.06)^{5}

\text{Amount of money Omar will get after 5 years}=950(1.06)^{5}

\text{Amount of money Omar will get after 5 years}=950*1.3382255776

\text{Amount of money Omar will get after 5 years}=1271.314

Therefore, Omar will get $1271.314 after 5 years.

As $1440 is greater than $1225 and also than $1271.31, therefore, Keir will have the most money to spend on a new boat at the end of the five years.

kolezko [41]3 years ago
5 0
To get the answer, you have to find the simple interest and compound interest.
Simple Interest= Principal amount(1+rate x time)
Compound interest= Principal amount(1 + rate/number of months)^number of months x time
simple interest Vanore= 1000(1+ 0.045x5)
=1225 dollars
simple interest Keir= 1200(1+ 0.04x5)
=1440 dollars
compound interest Omar= 950(1+ 0.06/12)^12(5)
=1281 dollars

The answer is Keir having 1440 dollars.
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