i think this is a systems of equations
putting this on a graph we have to equations:
y = 10x + 30
y = 20x
graph and find the intersection.
it has to be more than or equal to 3 miles i think for wreckomend
(X+4)^2-15
This is the answer
Here is the formula you'll need
Total = Principal * (1 + (rate/n))^n*years
I don't know how to solve that for "n" so we'll use trial and error.
If compounded annually, total =
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10,841.24
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</span>
If compounded quarterly, total =
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10,955.64
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</span></span><span>If compounded monthly, total =
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10,981.82
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</span>
</span>
If compounded daily, total =
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<span>
10,994.58
</span>
</span>
</span>
Therefore the answer is "A", daily.
Source:
http://www.1728.org/compint3.htm
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No because the sum could also be irrational number which for example it could be square root of 9 or 49
Hope this helps answer your question
