document.write( "Question 549293: In your pocket you have 25 coins (quarters and dimes). The total value of coins is $4.15. How many of each coin do you have? \n" ); document.write( "
Algebra.Com's Answer #357615 by JBarnum(2146)![]() ![]() You can put this solution on YOUR website! d+q=25 \n" ); document.write( ".10d+.25q=4.15 \n" ); document.write( "first thing you should notice is the 15 cents \n" ); document.write( "2 dimes= 20 cents and 1 quarter =25 cents so you need to find the combination that makes the 15 cents. 3 quarters gives 75 cents and addin 4 dimes gets 1.15 \n" ); document.write( "min q=3 =.75 +.40=1.15 \n" ); document.write( "min d=4 \n" ); document.write( "3q+4d=7 coins \n" ); document.write( "25-7=18 coins left \n" ); document.write( "18d=1.80 guess, and lets you know you will need a few more quarters \n" ); document.write( "4.15-1.15=3.00 \n" ); document.write( "we need 3 dollars \n" ); document.write( "4q=1.00 \n" ); document.write( "4q=1.00 \n" ); document.write( "10d=1.00 \n" ); document.write( "3+4+4=11quarters \n" ); document.write( "4+10=14dimes \n" ); document.write( "11q+14d=25coins \n" ); document.write( " |