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Math 11 Pre-Calculus LG 17 Practice Unit Test #3



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Principal of $1700 is invested at 8.2% simple interest, paid annually, for 7 years. What is the rate of return?
A.
57%
B.
36%
C.
63%
D.
75%
 

 2. 

How many compounding periods are there for $850 invested for 10 years at 4.75% compounded quarterly?
A.
2.5
B.
10
C.
30
D.
40
 

 3. 

Determine the future value of semi-annual payments of $350 into an account that pays 2.4% interest, compounded semi-annually, for 32 years.
A.
$13 556.48
B.
$33 413.92
C.
$51 952.26
D.
$38 830.51
 

 4. 

Determine the regular annual payment required to have $5000 at the end of 12 years if the investment earns 3% interest, compounded annually.
A.
$320.08
B.
$333.82
C.
$348.61
D.
$352.31
 

 5. 

Regular weekly payments of $20 are deposited into an account paying 1.5% interest, compounded weekly. If the final value of the account is $5000, how long was the money invested?
A.
4.64 years
B.
5.30 years
C.
4.96 years
D.
4.10 years
 

 6. 

Regular quarterly payments of $6000 are deposited into an account paying 3.19% interest, compounded quarterly. If the final value of the account is $75 000, how long was the money invested?
A.
3.12 years
B.
2.99 years
C.
2.85 years
D.
3.27 years
 

 7. 

For 3 years, regular weekly payments of $50 are deposited into an account that compounds interest weekly. If the final value of the account is $8600, what was the interest rate?
A.
6.51%
B.
6.43%
C.
6.23%
D.
6.45%
 

 8. 

Catherine wants to travel to England. The trip costs $3000 and she can afford monthly payments of $150. She can finance her trip using one of her two credit cards.
• Card 1 charges 12.7%, compounded daily.
• Card 2 charges 18.1%, compounded daily, but she gets 3% cash back on all purchases.
What is the least amount of interest Catherine can pay?
A.
$473.75
B.
$300.00
C.
$391.02
D.
$563.75
 

 9. 

Cormac wants to pay off all his debts in 4 years. He has two credit cards on which he makes monthly payments:
• Card A has a balance of $3002.91 and an interest rate of 17.6%, compounded daily.
• Card B has a balance of $4712.01 and an interest rate of 15.9%, compounded daily.
Cormac wants to consolidate his debts into a line of credit with an interest rate of 8.9%, compounded monthly. If Cormac does not consolidate his debt, what will his combined monthly payments be?
A.
$87.78
B.
$191.62
C.
$221.33
D.
$133.55
 
 
A banquet room can seat up to 600 guests. Each rectangular table seats 11 guests and each circular table seats 6 guests.
 

 10. 

If the banquet organizers want to have close to the same number of rectangular and circular tables, what combination of tables could they use and still seat the maximum number of people?
A.
24 rectangular and 24 circular tables
C.
37 rectangular and 37 circular tables
B.
35 rectangular and 35 circular tables
D.
9 rectangular and 9 circular tables
 

 11. 

Which number line represents the solution set to the inequality mc011-1.jpg?
A.
mc011-2.jpg
C.
mc011-4.jpg
B.
mc011-3.jpg
D.
mc011-5.jpg
 
 
800 people will attend a concert if tickets cost $20 each. Attendance will decrease by 30 people for each $1 increase in the price. The concert promoters need to make a minimum of $12 800.
 

 12. 

What quadratic inequality represents this situation?
A.
mc012-1.jpg
C.
mc012-3.jpg
B.
mc012-2.jpg
D.
mc012-4.jpg
 

 13. 

What is the range of ticket prices the concert promoters can charge and still make at least the minimum amount of money desired?
A.
mc013-1.jpg
C.
mc013-3.jpg
B.
mc013-2.jpg
D.
mc013-4.jpg
 

 14. 

The solution to the inequality mc014-1.jpg is
A.
mc014-2.jpg
C.
mc014-4.jpg
B.
mc014-3.jpg
D.
mc014-5.jpg
 

 15. 

Which point does not satisfy the inequality mc015-1.jpg?
mc015-2.jpg
A.
mc015-3.jpg
C.
mc015-5.jpg
B.
mc015-4.jpg
D.
mc015-6.jpg
 

Short Answer
 

 1. 

How long will it take for monthly payments of $145 to grow to more than $60 000 if the interest rate is 4.15%, compounded monthly?
 

 2. 

Vladimir is buying a house that costs $375 000. He has negotiated a mortgage with the bank that requires a down payment of 12% of the cost of the house. He will pay off the mortgage with regular monthly payments over 25 years at an interest rate of 2.8%, compounded semi-annually. How much interest will he pay?
 

 3. 

Emily is purchasing a house for $185 000 that appreciates at a rate of about 1.5% per year. She will finance this purchase with a 15-year mortgage at an interest rate of 3.9%, compounded semi-annually, with monthly payments, where she is required to make a 10% down payment. If she sells the house after 5 years at market value, what will be her profit on the sale?
 

 4. 

a) Sketch the graph of the quadratic inequality sa004-1.jpg.
b) Check your answer using a test point not in the solution region you graphed..
sa004-2.jpg
 

 5. 

What is the graphical solution to the quadratic inequality sa005-1.jpg?
sa005-2.jpg
 



 
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