First we define the variable to be used:
x: half-life time period
The equation for this problem can be modeled as:
y = A * (b) ^ x
Where,
A: initial amount
b: decrease rate.
For example:
if there are 100 atoms, after one half-life time period, 50 atoms remain:
y = 100 * (0.50) ^ x
after one half-life time period (x = 1):
y = 100 * (0.50) ^ 1
y = 50
The equation that models the problem is:
y = 16 * (0.50) ^ x
The table is:
1 8
2 4
3 2
4 1
5 0.5
9514 1404 393
Answer:
C. $1,315.06
Step-by-step explanation:
Saving 103.19 per month for 12 months would give Ricky the amount of ...
12 × $103.19 = $1238.28
The amount of interest earned on this amount in one year is ...
I = Prt = $1238.28·0.031·1 = $38.39 . . . . rounded to nearest cent
Then the balance after 2 years will be ...
$1238.28 +2 × $38.39 = $1315.06
Answer:
C
Step-by-step explanation:
Since it ends in 5 it is an odd number.
Answer:
the answer is second one 14