document.write( "Question 435032: nineteen coins consisting of quarters and half-dollars amount to 6.50. find the amount of coins of each kind. \n" ); document.write( "
Algebra.Com's Answer #301185 by stanbon(75887) ![]() You can put this solution on YOUR website! nineteen coins consisting of quarters and half-dollars amount to 6.50. find the amount of coins of each kind. \n" ); document.write( "-------------- \n" ); document.write( "Quantity Eq.:: q + h = 19 \n" ); document.write( "Value Eq:::: 25q+50h = 650 cents \n" ); document.write( "----------------------------------- \n" ); document.write( "Multiply thru 1st by 25 to get: \n" ); document.write( "25q+25h = 25*19 \n" ); document.write( "--- \n" ); document.write( "Subtract that from the Value Eq and solve for \"h\": \n" ); document.write( "25h = 650-25*19 \n" ); document.write( "25h = 175 \n" ); document.write( "h = 7 (# of half-dollar coins) \n" ); document.write( "---- \n" ); document.write( "Solve for \"q\" \n" ); document.write( "q+h = 19 \n" ); document.write( "q+7 = 19 \n" ); document.write( "q = 12 (# of quarters) \n" ); document.write( "=========================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============= \n" ); document.write( " |