As per the given information;
Bacteria triples every month.
Originally, there were 4 bacterial cells.
We are suppose to find how many there will be after 15 months.
Hence we can say , the number of bacteria after n month can be given using the exponential growth function

So number of bacteria after 15 month will be

Answer:
1500 students
600 boys
Step-by-step explanation:
40% are boys, so 60% are girls.
Writing a proportion:
900 / 60% = x / 100%
x = 1500
There are 1500 students in the school, which means there are 600 boys in the school.
Answer:
Step-by-step explanation:its ratxrat
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Answer:
$60
Step-by-step explanation:
12/8 = x/40
40(12/8) = x
60 = x
<u>Answer:</u>
The interest after 3 years is $360
<u>Explanation:</u>
Given the principal amount (P) = $3000
Rate of interest (R) = 0.04
Time period (T) is given as 3 years
The Simple Interest is calculated by the formula;

Substituting the values in the above formula,

SI = $360
Therefore, the interest after 3 years is $360