Note that :
A nickel is worth 5 cents.
A dime is worth 10 cents.
A quarter is worth 25 cents.
Let n be the number of coins for each coin type.
The total value is $6.00, then we have :
[tex]\begin{gathered} \$0.05n+\$0.10n+\$0.25n=\$6.00 \\ \$0.4n=\$6.00 \\ n=\frac{6}{0.4}=15 \end{gathered}[/tex]The answer is 15
