Answer:
it is a simultaneous equation and I used Elimination method

The fraction for this would be 42
The percentage will be 42.85714285%
Answer:
times 5
Step-by-step explanation:
The Interest Rate, The Time And The Principle Amount
First solve for the trig function 'cot'

Next take the sqrt of both sides (include plus/minus)

Now take reciprocal of both sides, this will change trig function to 'tan'
(cot = 1/tan)

Finally use the unit circle or inverse tan on your calculator to find x.
There will be 4 solutions, one for each quadrant.