What system of equations would model this situation?

n+d=45

5n+10d=375

Step-by-step explanation:

n+d=45

Is the amount of nickels +dimes=45 total coins

5n and 10d is the amount those coins are worth

Since those don't have decimals, the answer must be a whole number.

828. all there is to it!

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thats the rounding one, but if you just click the top left, it shows you all the calculators you may need!