Question 1

To find 500 % of a number, multiply the number by 5 .
36.02

Accepted Answer

To find 500% of a number, you multiply the number by 5. Therefore, 500% of 36.02 is 36.02 * 5 = 180.1.

Question 2

Complete the table by finding the simple interest earned.
$\begin{array} { | l | l | l | l | } 
\hline \text { Principal } & \text { Rate } & \text { Time } & \text { Interest earned } \
\hline \$ 19,000 & 4 \% & 5 \text { yrs } & ? \
\hline
\end{array}$

Accepted Answer

To find the simple interest earned, we use the formula:

Simple Interest = (Principal)(Rate)(Time)

Plugging in the values given, we get:

Simple Interest = ($19,000)(0.04)(5) = $3,800

Therefore, the correct choice is C.

Question 3

Use the formula $I = P r t$ to reach a solution for the following problem.
One month a credit card company charged $9.27 in interest on a balance of $3,708 . What annual interest rate is the credit card company charging?

Accepted Answer

We know that:

- I (interest) = $9.27
- P (balance) = $3,708
- t (time) = 1 month (since we want the annual interest rate, we need to convert this to a yearly time frame)
- r (interest rate) = ?

To solve for r, we first need to convert t to years. Since there are 12 months in a year, we can divide t by 12 to get:

t = 1/12 years

Now we can plug in the values we know into the formula and solve for r:

I = P r t

$9.27 = $3,708 r (1/12)

r = $9.27 / ($3,708 * 1/12)

r = 0.03 or 3%

Therefore, the credit card company is charging an annual interest rate of 3%. The answer is D.

Question 4

Suppose that Nora invested $800 at 8.5 % compounded annually for 7 years and Patti invested $800  at 8 % compounded quarterly for 7  years. At the end of 7 years, who will have the most money and by how much (to the nearest dollar)?

Accepted Answer

The answer of Suppose that Nora invested $800 at 8.5...

Question 5

What is 200% of 80.19 ?

Accepted Answer

To find 200% of 80.19, we need to multiply 80.19 by 2. 
80.19 x 2 = 160.38 
Therefore, the correct answer is option C - 160.38.

Question 6

To find 25 % of a number, divide the number by 4 .
591.069

Accepted Answer

To find 25% of a number, we need to divide the number by 4. 
So, 591.069 divided by 4 is equal to 147.76725. 
Therefore, the answer is choice letter A.

Question 7

What is 200% of the given number?
586 m

Accepted Answer

The answer of What is 200% of the given number?
586 m
...

Question 8

Solve the formula for t .
Simple interest formula: $A = P + P r t$

Accepted Answer

Starting with the given formula:
$$A = P + Prt$$
Subtracting P from both sides gives:
$$A - P = Prt$$
Dividing both sides by Pr gives:
$$\frac{A - P}{Pr} = t$$
Which can be rearranged as:
$$t = \frac{A - P}{Pr} = \frac{1}{r}\left(\frac{A}{P}-1\right)$$
Therefore, the answer is (D).

Question 9

Complete the following chart, which illustrates what happens to $16,000 invested at various rates of interest for different lengths of time but always compounded continuously. Round your answers to the nearest dollar. $$\begin{array} { | c | c | c | c | c | } 
\hline & \mathbf { 8 } \% & \mathbf { 1 0 } \% & \mathbf { 1 2 } \% & \mathbf { 1 4 } \% \
\hline 5 \text { years } & & & & \
\hline 8 \text { years } & & & & \
\hline 11 \text { years } & & & & \
\hline 14 \text { years } & & & & \
\hline 17 \text { years } & & & & \
\hline
\end{array}$$

Accepted Answer

The correct choice is A because it correctly calculates the future value of $16,000 invested at various interest rates compounded continuously using the formula $A = P e^{rt}$, where $P = 16000$, $r$ is the rate, and $t$ is the time in years.

Question 10

Complete the following chart, which illustrates what happens to $8,000 invested at 12% for different lengths of time and different numbers of compounding periods. Round all of your answers to the nearest dollar. $$\begin{array} { | c | c | c | c | c | } 
\hline & \text { l year } & \text { T years } & \text { 14 years } & \text { 28 years } \
\hline \text { Compounded annually } & & & & \
\hline \text { Compoundedsemiannually } & & & & \
\hline \text { Compounded quatterly } & & & & \
\hline \text { Compounded monthly } & & & & \
\hline \text { Compounded continuously } & & & & \
\hline
\end{array}$$

Accepted Answer

The correct answer is A because it shows the correct values for the future value of $8,000 invested at 12% for different lengths of time and different numbers of compounding periods.

Quiz 6: Percent

To find 500 % of a number, multiply the number by 5 . 36.02

Complete the table by finding the simple interest earned. $\begin{array} { | l | l | l | l | } \hline \text { Principal } & \text { Rate } & \text { Time } & \text { Interest earned } \\\hline \$ 19,000 & 4 \% & 5 \text { yrs } & ? \\\hline\end{array}$

Use the formula $I = P r t$ to reach a solution for the following problem. One month a credit card company charged $9.27 in interest on a balance of $3,708 . What annual interest rate is the credit card company charging?

Suppose that Nora invested $800 at 8.5 % compounded annually for 7 years and Patti invested $800 at 8 % compounded quarterly for 7 years. At the end of 7 years, who will have the most money and by how much (to the nearest dollar) ?

What is 200% of 80.19 ?

To find 25 % of a number, divide the number by 4 . 591.069

What is 200% of the given number? 586 m

Solve the formula for t . Simple interest formula: $A = P + P r t$

Quiz 6: Percent

To find 500 % of a number, multiply the number by 5 . 36.02

Use the formula I=PrtI = P r tI=Prt to reach a solution for the following problem. One month a credit card company charged $9.27 in interest on a balance of $3,708 . What annual interest rate is the credit card company charging?

Suppose that Nora invested $800 at 8.5 % compounded annually for 7 years and Patti invested $800 at 8 % compounded quarterly for 7 years. At the end of 7 years, who will have the most money and by how much (to the nearest dollar) ?

What is 200% of 80.19 ?

To find 25 % of a number, divide the number by 4 . 591.069

What is 200% of the given number? 586 m

Solve the formula for t . Simple interest formula: A=P+PrtA = P + P r tA=P+Prt

Use the formula $I = P r t$ to reach a solution for the following problem. One month a credit card company charged $9.27 in interest on a balance of $3,708 . What annual interest rate is the credit card company charging?

Solve the formula for t . Simple interest formula: $A = P + P r t$