Gina has a collection of nickels and dimes worth $8.65. If she has 101 total coins,

Gina has 29 nickels and 72 dimes.

Step-by-step explanation:

Each nickel is $0.05, and each dime is $0.10.

If she has 101 total coins, we have:

All coins worth $8.65, so we have:

Multiplying the second equation by 20, and subtracting the result by the first equation, we have:

Then, finding the number of nickels, we have:

So Gina has 29 nickels and 72 dimes.

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v

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step-by-step explanation: