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Exponential Growth, Decay, and Interest

Authored by Anthony Clark

Mathematics

9th Grade

CCSS covered

Exponential Growth, Decay, and Interest
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Riley invested $1,000 in savings bonds. If the bonds earn 6.75% interest compounded semi-annually, how much total will Riley earn in 15 years?

$1,584.62

$2,651.39

$2,706.86

$1,825.10

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Principal: $5000
Interest Rate: 3.75%
Time: 25 years
Compounded Monthly
State the future account balance.

$12712.31

$12,749.30

$12,657.59

$12550.84

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Olivia would like to buy some new furniture for her home. She decides to buy the furniture on credit with 9.5% interest compounded quarterly. If she spent $7,400, how much total will she have paid after 8 years.

$15,415.94

$15,683.28

$15,927.56

$16,109.05

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Given an investment of $1,500:
Which investment would have a larger balance after 5 years?
4% compounded monthly
3.9% compounded daily.

4% compounded monthly

3.9% compounded daily.

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

You invest $400 for 5 years at an interest rate of 4.29% each year. Which equation models this?

y=400(1 - 0.0429)5

y=400(1+.0429)5

y=400(1+ 4.29)5

y=400e0.049*5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Suppose you deposit $3000 in a savings account that pays interest at an annual rate of 4%. If no other money is added or withdrawn from the account, how much will be in the account after 10 years?

$3122.18

$4994.50

$4440.73

$86,776.40

Tags

CCSS.HSF.BF.A.2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The number of mosquitoes at the beginning of the summer was 4,000. The population of mosquitoes is expected to grow at a rate of 25% a month. How many mosquitoes will there be after 4 months?

9766

9006

9765

5433

Tags

CCSS.HSF.BF.A.2

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