<PRE><B>Question 940041</B>
10 dimes  = 1 dollar
 1 dime  = 0.1 dollar
 4 quarters  = 1dollar
1 quarter  = 0.25 dollars
let x be the no of dimes or no of quarters
  x*0.1 +x*0.25  = 5.25
    x(0.1+0.25) = 5.25
   x(  0.35) = 5.25
   divide with 0.35 on both sides
 {{{x( 0.35)/0.35 =5.25/0.35}}} 
    x=  15
no of dimes  = 15
 value of dimes  = 15 *0.1
                    = 1.5
value of dimes  = $ 1.5</PRE>