John has 51 coins. Dimes and quarters worth $9.60. How many of each coin does John have?
Stacey Warren - Expert brainly.com
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divide .25 (quatrer) into $9.60
dose that get yo started??
x are dimes and y are quarters when you add all values you get
10x+ 25y= 9.60
when you add your quarters and dimes you get 51 coins
You now have a system of equations. You can either use substitution or addition of subtraction of the equations.
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use substitution method
ah i'm braindead. Can you show me how to set up the substitution or addition of subtraction equations? please?
i'm sorry i have to go ill try to help you later if ur answer didn't get answered but i think someone else might help you sorry
x+y=51 isolate for x
Now replace everything on that x with 51-y
10x+ 25y= 9.60
Solve for y now.
Once you find y use that value and plug it back in into any equation then solver for x
sorry its suppose to be .10*(51-y)+.25*y=9.60
you should get y=30