Question

Dominic has $0.88 worth of pennies and nickels. He has a total of 28 pennies and nickels altogether. Determine the number of pennies and the number of nickels that Dominic has.

Answer 1

13 pennies and 15 nickels

Explanation:

Let the number of pennies be p and the number of nickels be n.

`n+p=28 \\ \\ 0.01p+0.05n=0.88 \implies p+5n=88 \\ \\ \implies 4n=60 \longrightarrow n=15 \\ \\ \therefore 15+p=28 \implies p=13`