Question #b72fe
2 Answers
Oct 3, 2017
I got:
Explanation:
Let us call the two quantities (at
Let us solve using the first equation rearranged:
into the second:
so that:
Oct 6, 2017
Elimination Method:
Explanation:
Another way to attack it. Using Gio's equations:
Since we are looking for
We can do that by multiplying the top equation by