Here are 5 problems from chapter 7-8 problems 4-16 (even only) that I would choose to practice: Problem 4) $800, 5%, 1 year Problem 6) $1200, 4.5%, 18 months Problem 8) $2000, 3.25%, 3 years Problem 10) $3000, 2.75%, 5 years Problem 14) $5000, 6%, 2 1/2 years

1. The Stock Market
I can use proportions to solve multi-step ratio and
percent problems, including interest, tax, discounts,

2. $1000
If I gave you $1000, What would you do with
it?
If you put it in a BANK, you would get 4%
back at the end of the year.
Calculate how much you would have in 1 year,
2 years, 6 months and 10 months.

3. I=PRT

4. I=PRT
I = INTEREST: Amount paid or earned for use
of others money.
(you are interested what you get.)

5. I=PRT
I = INTEREST: Amount paid or earned for use
of others money.
(you are interested what you get.)
P= Principal: The money you put in the bank.
(The principal amount)

6. I=PRT
I = INTEREST: Amount paid or earned for use
of others money.
(you are interested what you get.)
P= Principal: The money you put in the bank.
(The principal amount)
R=Rate: The percentage
(4%: you get $4per $100)

7. I=PRT
I = INTEREST: Amount paid or earned for use
of others money.
(you are interested what you get.)
P= Principal: The money you put in the bank.
(The principal amount)
R=Rate: The percentage
(4%: you get $4per $100)
T= Time: Usually based on one(1) Year.

8. Practice

9. Practice
A Bank will give you 3% at the end of one year.

10. Practice
A Bank will give you 3% at the end of one year.
$640, 3%, 2years

11. Practice
A Bank will give you 3% at the end of one year.
$640, 3%, 2years
I=$640 x 0.03 x 2

12. Practice
A Bank will give you 3% at the end of one year.
$640, 3%, 2years
I=$640 x 0.03 x 2
I= $38.40

13. Practice

14. Practice
A Credit Card company will charge you 19%
during one year

15. Practice
A Credit Card company will charge you 19%
during one year
$900, 19%, one month

16. Practice
A Credit Card company will charge you 19%
during one year
$900, 19%, one month
I=900 x 0.19 x (1/12)

17. Practice
A Credit Card company will charge you 19%
during one year
$900, 19%, one month
I=900 x 0.19 x (1/12)
I=900 x 0.19 ÷ 12

18. Practice
A Credit Card company will charge you 19%
during one year
$900, 19%, one month
I=900 x 0.19 x (1/12)
I=900 x 0.19 ÷ 12
I= $14.25

19. Practice

20. Practice
A Bank will give you 4.25% at the end of one
year.

21. Practice
A Bank will give you 4.25% at the end of one
year.
$1500, 4.25%, 4 years

22. Practice
A Bank will give you 4.25% at the end of one
year.
$1500, 4.25%, 4 years
I=$1500 x 0.0425 x 4

23. Practice
A Bank will give you 4.25% at the end of one
year.
$1500, 4.25%, 4 years
I=$1500 x 0.0425 x 4
I= $255

24. Choose 5
Choose 5 problems from chapter 7-8 #4-16
(even only)