document.write( "Question 993400: 1) Twice a number increased by 12 is equal 31 less then three times the number. Find the number\r
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document.write( "2) 8-2 times a number is equal to the number plus 17. Find the number.\r
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document.write( "3) The perimeter of a rectangle is 24in. Find the dimensions if its length is 3in greater than its width.\r
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document.write( "4) 1/5th of a number plus 5 times that number is equal to seven times the number less 18. Find the number\r
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document.write( "5) The perimeter of a rectangle is 12. The lenght is 2 more than twice its width. Find the dimensions of the rectangle \n" );
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Algebra.Com's Answer #612680 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "1). \n" ); document.write( "2x+12=3x-31 \n" ); document.write( "43=x \n" ); document.write( ". \n" ); document.write( "2). \n" ); document.write( "8-2x=x+17 \n" ); document.write( "-9=3x \n" ); document.write( "-3=x \n" ); document.write( ". \n" ); document.write( "3). \n" ); document.write( "W=width; L=length=W+3 \n" ); document.write( ". \n" ); document.write( "P=2(L+W) \n" ); document.write( "24=2((W+3)+W) \n" ); document.write( "12=2W+3 \n" ); document.write( "9=2 \n" ); document.write( "4.5=W ANSWER 1: The width is 4.5 inches \n" ); document.write( "L=W+3=4.5+3=7.5 ANSWER 2: The length is 7.5 inches. \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( "P=2(L+W) \n" ); document.write( "24in=2(7.5in+4.5in) \n" ); document.write( "24in=2(12in) \n" ); document.write( "24in=24in \n" ); document.write( ". \n" ); document.write( "4). \n" ); document.write( "x/5+5x=7x-18 \n" ); document.write( "x/5+25x/5=7x-18 \n" ); document.write( "26x/5=7x-18 \n" ); document.write( "5.2x=7x-18 \n" ); document.write( "18=1.8x \n" ); document.write( "10=x \n" ); document.write( "ANSWER: The number is 10. \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( "x/5+5x=7x-18 \n" ); document.write( "(10/5)+5(10)=7(10)-18 \n" ); document.write( "2+50=70-18 \n" ); document.write( "52=52 \n" ); document.write( ". \n" ); document.write( "IN THE FUTURE, PLEASE LIMIT TO ONE QUESTION PER POST. \n" ); document.write( "Otherwise, it seems like you are just dumping your \n" ); document.write( "homework here without trying. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |