steph72198
contestada

1. Principal is___.
A. The original amount invested
B. The total amount earned
C. Interest plus original amount invested
D. Interest on a loan

2. Interest is calculated by___.
A. Adding the interest rate to the principal
B. Multiplying the principal by the interest rate
C. Multiplying the principal by the interest rate and the time
D. Multiplying the principal by the interest rate and dividing by the time

3. You invest $2,000.00 at a rate of 4% APR for a 3 months. How much interest did you earn?
A. $80.00
B. $40.00
C. $20.00
D. $10.00

4. You earn $10.00/ hour. You invest $4,000.00 at an interest rate of 5% APR for a year. How much interest did that savings earn in a year in terms of hours of work?
A. 100 hours
B. 20 hours
C. 40 hours
D. 400 hours

Respuesta :

warstarter101
1 a
2 c
3 c
4b
I hope  this helped you if not comment
Cetacea

1. Principal is the original amount invested. It is the initial size of the loan or investment. Therefore, the correct answer is A.

2. Interest is calculated by Multiplying the principal by the interest rate and the time. Simple interest is calculated just on the principal. Simple interest is calculated using the formula Simple Interest = Principal *Rate *Time. Therefore, C is the correct answer.

3. if you invest 2,000.00 at a rate of 4% APR for 3 months. your earning can be calculated as follows

2000*4/100 = 80

80*3/12

=20

Therefore, $20, that is C is the correct answer.

4. In the given statement of the question, following can be understood:

P is the principal amount, $4000.00.

r is the interest rate, 5% per year,  

in decimal form, 5/100=0.05.

t is the time involved, 5....year(s) time periods.

So, t is 5....year time periods.

To find the simple interest, we multiply 4000 × 0.05 × 5

The interest in hours is: $1000.00 /5 = $200/$10=20 Hours

Therefore, 20 hours, that is B is the correct answer.  

Learn more about principal and interest here:

https://brainly.com/question/2284670

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