Is each a circle or are they going to be triangles because if so you would divide 5 by 2 and get your answer of 2.5 as the diameter for each slice but if it is circles you would divide 5/7 and get .71428......
Answer:
6%
Step-by-step explanation:
Given,
Interest (I) = 2160
Principal (P) = 12000
Time (T) = 3 yrs
Rate (R) = ?
We know that,
R = ( I *100)/ (P*T)
= (2160*100)/(12000*3)
= 6%
therefore, the rate of interest is 6%
The number of cows is given by
So, after years, the number of cows will be
We want this number to be twice as much as the original:
First of all, we can cancel 14 from both sides:
Finally, on the right hand side, we can use the exponent rule
to get
To solve this equation, we must impose that the two exponents are the same:
And clearly this is true if and only if . So, it will take 5 years for the cow heard to double in number.
You can do the exact same steps to find the doubling time for the sheeps.