The answer is 3/50. If you have Texas Instruments calculator, you type in 0.06, the 2nd button and then hit the MATH button and press enter on #1. It will convert it into a fraction for you. And 3/50 is in it's simplest form.
I solved this by hand first, then cymath, then Wolfram alpha. we all agree the solution to the equation involved is x=-3 however -3 is not a multiple of 6. if you plug it in you get a solution of 24 but I don't consider this to be a valid question.
After Day 7 the Second would have more water.
To find the amount of complete octaves there are on the piano, you must first divide 88/ 12; which is 7.333. Since the question is asking for the amount of complete octaves, you must round down to 7. Your final answer is 7 complete octaves.
I believe the answer is A. 20, 30, 40 is NOT a pythagorean triple.
