Answer: 9/16
Step-by-step explanation:
10 is twice the size of 5 thus 100% bigger
In order to figure this out you need to use
Descartes Rule. I attached a picture showing Descartes Rule. If the signs changes for when x is positive then the number of times it changes are the possible positive solution. If the sign changes when x is negative then the number of times it changes are the possible negative solutions. With that said the answer is A. View the picture I have attached for the possible + - and imaginary solutions.
Answer = A) One possible positive solution.
63+12= your difference between the numbers
63+12=84
84/12 = 7.
Your answer would be 7 degrees per hour.