Bell Ringer Suppose Shawn deposited $2,500 in a savings account which earns 3.5% interest and is compounded monthly. Find the amount he has after six.

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Presentation transcript:

Bell Ringer Suppose Shawn deposited $2,500 in a savings account which earns 3.5% interest and is compounded monthly. Find the amount he has after six years.

Interest Tables & Annuities Skill 12

Compound Interest Tables

To solve compound interest we can use tables. Step 1; Total Interest Periods Periods per year * # of years Step 2; Find Interest rate per periods 𝐴𝑛𝑛𝑢𝑎𝑙 𝑅𝑎𝑡𝑒 𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑃𝑒𝑟𝑖𝑜𝑑𝑠 Step 3; Find amount of interest using table Compound Interest-Amount of $1 Step 4; Find amount 𝑂𝑟𝑖𝑔𝑖𝑛𝑎𝑙 𝑝𝑟𝑖𝑛𝑐𝑖𝑝𝑎𝑙∗𝐴𝑚𝑜𝑢𝑛𝑡 𝑜𝑓 $1.00

Suppose Arbor Bank pays 18% interest compounded monthly on regular savings accounts. Hank deposited $3000 for 3 years. How much interest was earned after 3 years.

Suppose Great Western Bank pays 12% interest annually and on regular savings accounts they compound quarterly. Janet deposited $42,500 for 2 years. Find the interest that was earned.

Suppose Wells Fargo Bank pays 18% interest annually and on regular savings accounts they compound monthly. Dave deposited $21,000 for 4 years. Find the amount he has in the account after that time.

Annuities 4.5b

When an equal amount of money is deposited at equal time intervals it is called annuity. Ordinary Annuity is when equal deposits are made at the end of the interest period. Annuity Due is when regular deposits are made at the beginning of the interest period.

Using annuity to find future value… For Ordinary Annuity 𝐹𝑢𝑡𝑢𝑟𝑒 𝑉𝑎𝑙𝑢𝑒=𝐴𝑚𝑜𝑢𝑛𝑡 𝑜𝑓 𝑑𝑒𝑝𝑜𝑠𝑖𝑡 ∗𝑓𝑢𝑡𝑢𝑟𝑒 𝑣𝑎𝑙𝑢𝑒 𝑜𝑓 $1 For Annuity Due 𝐹𝑢𝑡𝑢𝑟𝑒 𝑉𝑎𝑙𝑢𝑒=𝐹𝑢𝑡𝑢𝑟𝑒 𝑣𝑎𝑙𝑢𝑒 𝑜𝑓 𝑜𝑟𝑑𝑖𝑛𝑎𝑟𝑦 𝑎𝑛𝑛𝑢𝑖𝑡𝑦∗$1 +𝑟𝑎𝑡𝑒 𝑝𝑒𝑟 𝑝𝑒𝑟𝑖𝑜𝑑

Mike deposits $750 in an ordinary annuity at the end of each quarter in an account earning 6% interest compounded quarterly. Find the future value of the account in 2 years.

Steps of annuity due… Find future value of ordinary annuity Find rate per period then add 1 Step 3 Multiply the numbers in step 1 and step 2

Dakota deposits $900 in an annuity due account at the beginning of each quarter in an account earning 6% interest compounded quarterly. Find the future value of the account in 2 years.

Skill 12: Interest Tables & Annuities Questions? Summarize your notes Homework Worksheet