a) ridiculous question ! , makes no sense
the "arithmetic" would be 8200(1.0988) = ....
b)
weekly rate = .0988/52 = .0019
number of weeks in 18 years = 936
amount = 8200(1.0019)^936 = $48,465.24
Josh's grandparents established a college fund for him when he was born. They deposited $8,200 into an account that earned 9.88% interest. Assuming Josh goes to college at age 18, how much money will he have if...
a) ... the interest is calculated only once during the entire loan?
b) ... the interest is compounded weekly?
2 answers
a) 8200 × 0.0988 × 18 = $14582.88
8200 + 14582.88 =
$22782.88 -correct
b) 8200(1.0019)^936 =
$48,465.24 -correct
8200 + 14582.88 =
$22782.88 -correct
b) 8200(1.0019)^936 =
$48,465.24 -correct