Answer:
-4 < x < 4
Step-by-step explanation:
Okay. To solve this kind of problem, all you have to do is multiply by 18% (0.18). 300 * 0.18 is 54. There. 54 students have chips.
Answer:
1/x^4
Step-by-step explanation:
Answer:

Step-by-step explanation:
We can set up the following system of equations:
, where
is the number of dimes she has and
is the number of nickels she has.
Multiplying the second equation by -5 and adding both equations lets us isolate and solve for
:

Plugging
into any of the two equations will let us solve for
:
.
Therefore, she has 14 nickels.