A piggy bank contains only nickels and dimes. In all there are 42 coins with a total value of $3.85. How many nickels are in the piggy bank?

Question

PsyDAG · Accepted Answer

Let x = # of nickels, y = # of dimes x + y = 42 y = 42 - x 5x + 10y = 385 Substitute 42 - x for y. 5x + 10(42-x) = 385 Solve for x.

edwitch dumerand · Answer

a peggy bank contains only nickels and dimes. in all there are 42 coins with a total value of 3.85. how many nickels are in the peggy

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