document.write( "Question 943907: A vending machine has a total of 3690 pesos in it in 20 and 50 peso bills. If the number of 50 pesos bills is 10 more than twice the 20 pesos bills. How many of each kind are there? \n" ); document.write( "
Algebra.Com's Answer #575515 by macston(5194)\"\" \"About 
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T=20 peso bills; F=50 peso bills=2T+10
\n" ); document.write( "20T+50F=3690 Substitute for F
\n" ); document.write( "20T+50(2T+10)=20T+100T+500=3690
\n" ); document.write( "120T+500=3690 Subtract 500 from each side
\n" ); document.write( "120T+500-500=3690-500
\n" ); document.write( "120T=3190 divide each side by 120
\n" ); document.write( "120T/120=3190/120
\n" ); document.write( "T=26.58=27 ANSWER 1 There are 27 - 20 peso bills in the machine
\n" ); document.write( "F=2T+10=53.16+10=63.16=63 ANSWER 2 there are 63 - 50 peso bills in the machine
\n" ); document.write( "CHECK:
\n" ); document.write( "20T+50F=3690
\n" ); document.write( "20(27)+50(63)=3690
\n" ); document.write( "540+3150=3690
\n" ); document.write( "3690=3690
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