Simple Interest — Unit test Answers

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What is the simple interest that is missing from the table? Use the formula .I?p$5,630r4%t2 years

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A
$450.00
B
$450.40
C
$45,000.40
D
$45,040.00
2
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Li invests money in a savings account. She wants to know the amount of simple interest that she will earn in 6 years at 3.75 percent. What additional information does she need to find this amount?

A
principal
B
amount of time
C
interest rate
D
the type of account
3

Bobby borrowed $500 at 12 percent simple annual interest. He paid back $680 to pay off the loan. How many years did it take Bobby to pay back the loan?

A
3
B
4
C
11
D
12
4

The following information is known about a loan.Time = 8 yearsInterest rate = 14%Principal = $1,010What is the total amount of simple interest that is earned?

A
$113.20
B
$1,131.20
C
$11,311.20
D
$113,112.00
5

Hanna puts $4,383 in a savings account with an annual interest rate of 5.2 percent for 3 years. Into which variable should she substitute 4,383 in the simple interest formula ?

Question illustration
A
I
B
p
C
r
D
t
6

Mrs. Sing invests $12,876 for her business at an annual interest rate of 7 percent for 3 years. Which number will Mrs. Sing substitute for r in the simple interest formula?

Question illustration
A
0.007
B
0.07
C
0.7
D
7
7

Maggie is considering two investments. Investment AInvestment BPrincipal$10,000$8,000Interest rate3%2.8%Time in years515 Which investment will be worth more at the end of the investment period?

A
Investment A will be worth more because the interest rate is lower than the interest rate for investment B.
B
Investment A will be worth more because the total of the principal and the interest earned for investment A is greater than the same total for investment B.
C
Investment B will be worth more because the length of time is greater than the length of time for investment A.
D
Investment B will be worth more because the total of the principal and the interest earned for investment B is more than the same total for investment A.
9

Constance will put $500 in a savings account. Which option should she choose so that she will have the most money?

A
1 year at 12 percent
B
1 year at 9 percent
C
2 years at 7 percent
D
2 years at 5 percent
10

The following information is known about a loan.Time = 7 yearsInterest rate = 6%Interest = $840.00What was the principal on the loan?

A
$200.00
B
$352.80
C
$1,862.50
D
$2,000.00

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