160,000/4 = n
n = 40,000
Answer: n = 40,000
Answer:

Step-by-step explanation:
We can write the following system of equations:
, where
is the number of dimes she has and
is the number of nickels she has.
Multiply the second equation by
and add both equations to solve for
:
.
Plug
into any equation to solve for
:

-6(3i)(-2i)= -36
2(3-I)(-2+4i)= -4 + 28i