1. Mr. Gunny deposits $4,900 in a savings account that pays 1.5% interest compounded quarterly.

A1. Find the first quarter's interest.

A2. Find the first quarter's balance.

C. Find the second quarter's interest

D. Find the second quarter's balance.

E. Find the third quarter's interest.

F. Find the third quarter's balance.

a) 18.38

b) 4918.38

c) 18.44

d) 4936.82

e) 18.51

f) 4955.33

Step-by-step explanation:

Given

A

r

m

a)

I1

b)

c)

d)

e)

f)

$5.41

step-by-step explanation:

$20 - $14.51 = $5.49.

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

source: