We know that the interest decreased by 29.3%, therefore
what was left now is simply just 70.7% of the original, therefore we divide
this by 0.707
rate = 7.7% / 0.707
rate = 10.89%
<span>So the rate was 10.89% 10 years ago</span>
How much detail for the answer
We have that <span>
</span>
the expression is (300)*(3^m)
for m=-1
(300)*(3^-1)---------> (300)*(1/3)=100
The value of expression at m=-1 is 100, so there
were 100 visitors 1 months before the number of visitors was measured
Let x = smaller number
Let y = bigger number
y = 7x + 4
x + y = 92
x + (7x + 4) = 92
8x + 4 = 92
8x = 88
x = 11
y = 7x + 4
y = 81
