<PRE><B>Question 736003</B>
quarter is 25 cents
dime = 10 cents

I am sure you know this (Ha,Ha)

total coins = 15

if I have x dime then the balance will be 15-x

dimes = x
quarters = 15-x

Value of dimes = 10x
Value of quarters = 25(15-x)

total amount is $ 2.25 = 225 cents

10x+25(15-x)=225

10x+375-25x=225

-15x+375=225
-375
-15x=225-375
-15x=-150

/-15
x=10 the number of dimes
balance 5 will be quarters

CHECK to make sure

10*10 + 25 *5 = 225

There you are

cheers!

</PRE>