document.write( "Question 63887: What is the distance formula?\r
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document.write( "How do you solve the problem: x-3y=17
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document.write( " 2x+y=6 (using the sustitution method)\r
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document.write( "A cable 50ft long is cut into two pieces so that one piece is 6ft longer than the othe. How long is each piece? \n" );
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Algebra.Com's Answer #44599 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! THE DISTANCE FORMULA FOR VEHICLES/BOATS/PLANES/BICYCLES/ETC. IS \n" ); document.write( "DISTANCE = RATE*TIME \n" ); document.write( "EX. MILES=45 MPH*3 HOURS \n" ); document.write( "MILES=45*3 \n" ); document.write( "MILES=135 \n" ); document.write( "----------------------------------------------------------------- \n" ); document.write( "X-3Y=17 OR X=3Y+17 \n" ); document.write( "2X+Y=6 SINCE X=(3Y+17) WE SUBSTITUTE (3Y+17) FOR X IN THIS FORMULA \n" ); document.write( "2(3Y+17)+Y=6 \n" ); document.write( "6Y+34+Y=6 \n" ); document.write( "7Y=6-34 \n" ); document.write( "7Y=-28 \n" ); document.write( "Y=-28/7 \n" ); document.write( "Y=-4 SOLUTION. NOW REPLACE Y WITH -4 AND SOLVE FOR X \n" ); document.write( "X-3*-4=17 \n" ); document.write( "X+12=17 \n" ); document.write( "X=17-12 \n" ); document.write( "X=5 SOLUTION \n" ); document.write( "PROOF \n" ); document.write( "2*5-4=6 \n" ); document.write( "10-4=6 \n" ); document.write( "6=6\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |