document.write( "Question 399413: You have 737 coins that are all either dimes or quarters. If these coins are worth $107, how many of each type of coin do you have? \n" ); document.write( "

Algebra.Com's Answer #282837 by nerdybill(7384) $\"\"$ $\"About$

You can put this solution on YOUR website!
You have 737 coins that are all either dimes or quarters. If these coins are worth $107, how many of each type of coin do you have?
\n" ); document.write( ".
\n" ); document.write( "Let q = number of quarters
\n" ); document.write( "then
\n" ); document.write( "737-q = number of dimes
\n" ); document.write( ".
\n" ); document.write( ".25q + .10(737-q) = 107
\n" ); document.write( ".25q + 73.7-.10q = 107
\n" ); document.write( ".15q + 73.7 = 107
\n" ); document.write( ".15q = 33.30
\n" ); document.write( "q = 222 (number of quarters)
\n" ); document.write( ".
\n" ); document.write( "number of dimes:
\n" ); document.write( "737-q = 737-222 = 515 \n" ); document.write( "

\n" );