Answer:
The answer is (3,2) or x=3 and y=2
Step-by-step explanation:
Given:
The initial mass of an element is 800 grams.
Decay rate = 8.2% per day
Number of days = 15
To find:
The remaining element after 15 days.
Solution:
The exponential decay model is

Where, a is the initial value r is the rate of interest and t is time period.
Putting
in the above formula, we get




Therefore, the mass of the remaining element is 221.7 grams.
Answer:
180
Step-by-step explanation:
for 40 to be equal to 80 in percentages, the number has to be duplicated
1,025. Multiply 55 by 15, then add the $200 fee. I hope this helps :)