document.write( "Question 67918This question is from textbook prentice hall Algebra 1
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document.write( ": a three digit number is 28 times the sum of its digits. the units digit is twice the tens digit and 3 more than the hundreds digit. Find the number \n" );
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Algebra.Com's Answer #48293 by ptaylor(2198)![]() ![]() You can put this solution on YOUR website! a three digit number is 28 times the sum of its digits. the units digit is twice the tens digit and 3 more than the hundreds digit. Find the number\r \n" ); document.write( "\n" ); document.write( "Let x=units digit\r \n" ); document.write( "\n" ); document.write( "x/2=tens digit\r \n" ); document.write( "\n" ); document.write( "x-3=hundreths digit\r \n" ); document.write( "\n" ); document.write( "We know that the number would be: 100(x-3)+10(x/2)+x\r \n" ); document.write( "\n" ); document.write( "Now we are told that 28 times the sum of the digits is equal to the number. So:\r \n" ); document.write( "\n" ); document.write( "28(x+x/2+(x-3))=100(x-3)+10(x/2)+x clear parens\r \n" ); document.write( "\n" ); document.write( "28x+14x+28x-84=100x-300+5x+x collect like terms \n" ); document.write( "70x-84=106x-300 continue simplifying \n" ); document.write( "-106x+70x=-300+84\r \n" ); document.write( "\n" ); document.write( "-36x=-216 \n" ); document.write( "x=6--------------------------unit digit \n" ); document.write( "x/2=6/2=3------------------------tens digit \n" ); document.write( "x-3=6-3=3------------------------hundreths digit\r \n" ); document.write( "\n" ); document.write( "THE NUMBER IS: 336--------------------------ANSWER\r \n" ); document.write( "\n" ); document.write( "ck\r \n" ); document.write( "\n" ); document.write( "28(6+3+3)=336 \n" ); document.write( "28(12)=336 \n" ); document.write( "336=336\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Hope this helps-----Ptaylor \n" ); document.write( " \n" ); document.write( " |