document.write( "Question 506913: The little train had completed 30 percent of the journey. if 3600 miles still remained what was the total length of the journey? \n" ); document.write( "
Algebra.Com's Answer #340372 by Maths68(1474)\"\" \"About 
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Let
\n" ); document.write( "Total Length of the Journey = x
\n" ); document.write( "Completed Journey = 3600
\n" ); document.write( "30% of x = x * 30% = x * 30/100 = x * 3/10 = 3x/10\r
\n" ); document.write( "\n" ); document.write( "Total Length of the Journey = remaining Journey + Completed Journey (30% of x)
\n" ); document.write( "x= 3600 + 3x/10
\n" ); document.write( "Multiply by 10 both sides of the above equation
\n" ); document.write( "10x=10 * 3x/10 + 10 * 3600
\n" ); document.write( "10x=3x + 36000
\n" ); document.write( "10x-3x=36000
\n" ); document.write( "7x=36000
\n" ); document.write( "Divide by 7 both side of the equation
\n" ); document.write( "7x/7=36000/7
\n" ); document.write( "x= 5142.857\r
\n" ); document.write( "\n" ); document.write( "Total Length of the Journey = 5142.857 miles\r
\n" ); document.write( "\n" ); document.write( "Check
\n" ); document.write( "Train Completed 30% so 70% still remain
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\n" ); document.write( "Remaining 70% of Total Journey = 70/100 * 5142.857
\n" ); document.write( "Remaining 30% of Total Journey = 7/10 * 5142.857
\n" ); document.write( "Remaining 30% of Total Journey = 7 * 514.2857
\n" ); document.write( "Remaining 30% of Total Journey =3599.9999 miles (Round it off)--> 3600.00 miles\r
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