Question 1092835
<br>Since the amount of money he has in nickels is twice the amount he has in dimes, and since each nickel is worth only half as much as each dime, we can deduce that the number of nickels he has is 4 times the number of dimes.<br>
Then, since there are 30 coins in all, if we call the number of dimes d then
{{{d + 4d = 30}}}
{{{5d = 30}}}
{{{d = 6}}}<br>
So he has 6 dimes and 24 nickels.