anonymous
  • anonymous
How could i solve this? please help me! There are 20 coins altogether. and pennies and nickels were the only coins used. The total value is 48 cents. how do i find out how many pennies and nickels were used?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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skullpatrol
  • skullpatrol
Any ideas?
austinL
  • austinL
This will be a system of equations problem. If that helps.
anonymous
  • anonymous
well i know there is 7 nickels and 13 pennies, I found this out by using a different method but i need to show it using two different methods, they were talking about other methods like system of linear equations and solve by graphing

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anonymous
  • anonymous
which one out of those two is easier to solve?
anonymous
  • anonymous
or do you know of any easier methods?
austinL
  • austinL
\(P+N=20\\ P=\text{Pennies}\\ N=\text{Nickles}\) \(0.01P+0.05N=0.48\) So with these we have the system: \(P+N=20\) \(0.01P+0.05N=0.48\)

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