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2 answers:
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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.
Answer:
Step-by-step explanation:
when taking the radical of a number its really just a fractioned exponent for example =
This is because in the radical the x has an exponent of 1 and since its the square root the radical is to the 2nd so you take the exponent of the X and put that of the what ever kind of radial you have such as a square root third root fourth root and so on...
in your case you would take X's exponent of 8 and since your taking the cube root would put the 8 over the 3.
hope that helped