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smportillo
smportillo smportillo
  • 20-01-2015
  • Mathematics
Answered

A box is filled with pennies, nickels, and dimes in a ratio of 2:3:4. If the total number of coins in the box is 1620, how many pennies are in the box

Verified Answer :

MichaelLiu
MichaelLiu MichaelLiu
  • 20-01-2015

We could say that the number of pennies is 2x, nickels are 3x, and dimes are 4x. Adding all of them together, we get 2x+3x+4x=9x. We also know that 9x=1620 because the total amount of coins is 1620. Dividing by 9 on both sides we get x=180.
Pennies equal 2x= 2*180=360

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