document.write( "Question 1009783: Jeremy has a collection of dimes and quarters. Overall, he has 51 coins and their total value is $10.35. What is the total value of ONLY the quarters? \n" ); document.write( "
Algebra.Com's Answer #625285 by addingup(3677)![]() ![]() You can put this solution on YOUR website! d+q= 51 subtract d fom both sides \n" ); document.write( "q= 51-d we'll use this value for q in the next equation \n" ); document.write( "------------------------------------------- \n" ); document.write( "0.10d+0.25q= 10.35 substitute for q \n" ); document.write( "0.10d+0.25(51-d)= 10.35 \n" ); document.write( "0.10d+12.75-0.25d= 10.35 Add q on left and subtract 12.75 on both sides \n" ); document.write( "-0.15d= -2.4 \n" ); document.write( "d= -2.4/-0.15 (remember that -/-= +) \n" ); document.write( "d= 16 Jeremy has 16 dimes \n" ); document.write( "51-16= 35 Jeremy has 35 quarters \n" ); document.write( "------------------------------------------------ \n" ); document.write( "16(0.10)= 1.60 \n" ); document.write( "35(0.25)= 8.75 \n" ); document.write( "_ _ _ _ _ ------- \n" ); document.write( "Total: ... 10.35 We have the correct answer \n" ); document.write( " |