document.write( "Question 984236: Chris has 7 more dollars coins than 25 cent coins. Altogether he has 19.50. How many dollar coins has she? \n" ); document.write( "
Algebra.Com's Answer #605014 by macston(5194)\"\" \"About 
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\n" ); document.write( "Q=number of quarters; D=dollars=Q+7
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\n" ); document.write( "$0.25Q+$1.00D=$19.50
\n" ); document.write( "$0.25Q+$1.00(Q+7)=$19.50
\n" ); document.write( "$0.25Q+$1.00Q+$7.00=$19.50
\n" ); document.write( "$1.25Q=$12.50
\n" ); document.write( "Q=10 She had 10 quarters
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\n" ); document.write( "D=Q+7=10+7=17
\n" ); document.write( "ANSWER: She had 17 dollar coins.
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