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account_balance_wallet $5

Ben had twice as many nickels as dimes. Altogether, Ben had $4.20. How many nickels and how many dimes did Ben have?

Apr 27th, 2015

 let No of  dimes =  x 

         No of nickels =2x   

  0.1x + 0.05*2x = 4.20

               x= 21 

No of  Dimes = 21 

  No of Nickels =  21 *2 =42    

Apr 26th, 2015

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Apr 27th, 2015
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Apr 27th, 2015
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