Answer:
3x-20 or x=6.6 but Im not sure.
Step-by-step explanation:
Answer: The first step would be to multiply the first equation by 3 and the second by 2 so you can eliminate x.
Answer:
he used 1,571
Step-by-step explanation:
if you divide 4,713 by 3, you get 1,571 and that amount is equal to just 1/3 of the amount.
The surface (call it
) is a triangle with vertices at the points



Parameterize
by

with
and
. Take the normal vector to
to be

Then the flux of
across
is



I don't understand what you mean but this might be the answer