Question 890654
If all 51 coins were dimes, the total would be $5.10
The actual total is $3.80, a difference of $1.30
The difference between a nickel and dime is .05
1.30 / .05 = 26
26 of the coins are nickels.  Therefore, 25 are dimes (51-26)
26 * .05 = $1.30
25 * .10 = $2.50
Total = $3.80