document.write( "Question 1091000: A person bought 510 greeting cards at 3 for $4 dollars. He sold 2/3 (fraction) of them at 2 for $3 and the rest at 5 for $6.50. What profit did he make? \n" ); document.write( "
Algebra.Com's Answer #705461 by addingup(3677)\"\" \"About 
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510/3 = 170
\n" ); document.write( "170 x 4 = 680 this is how much he paid
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\n" ); document.write( "510 x 2/3 = (510 x 2)/3 = 340 this is how many he sold at 2 for 3
\n" ); document.write( "(340/2) x 3 = 480 He got 480 for 2/3 of them.
\n" ); document.write( "510 - 340 = 170 These he sold at 5 for 6.50
\n" ); document.write( "(170/5) x 6.50 = 221
\n" ); document.write( "Add what he got: 480 + 221 = 701
\n" ); document.write( "And he paid total: . . . . . 680
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\n" ); document.write( "He made a profit of . . . . . 21
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