Question

. A friend opens a savings account by depositing $1000. He deposits an

additional $75 into the account each month.
a. What is a rule that represents the amount of money in the account as an
arithmetic sequence?
b. How much money is in the account after 18 months? Show your work.

Answer 1

the rule is:

75x + 1000

Explanation:

after 18 months

plug 18 in for x.

75(18) + 1000

= 1350

1350 + 1000

= 2350

$2350 after 18 months

Answer 2

Part (A) 1000+(n-1)75

Part (B) 2,275

subtract the 1 it's not 2350

Explanation: