jordan is twice as old as kevin. kevin is 4 times old as george. if george is 2 years old, then how old is jordan and kevin
2 answers:
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Answer:
Step-by-step explanation:
Normally, when I do this, I differentiate each term first with respect to x then with respect to y. In this solution, I differentiated the entire expression with respect to x, then with respect to y. That makes separating the dx and dy coefficients much easier, so the solution almost falls into your lap.