document.write( "Question 715541: a large holding tank was three tenths filled.a worker then added two fifth of tank.after adding two fiths of, the tank contained 1,400 gallon.how many gallons will this tank contain when filled capacity \n" ); document.write( "
Algebra.Com's Answer #439475 by mananth(16949)\"\" \"About 
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let capacity of tank be x\r
\n" ); document.write( "\n" ); document.write( "(3/10)x +(2/5)x = 1400\r
\n" ); document.write( "\n" ); document.write( "LCD is 10
\n" ); document.write( "multiply equation by 10\r
\n" ); document.write( "\n" ); document.write( "3x+4x=1400*10\r
\n" ); document.write( "\n" ); document.write( "7x=14000
\n" ); document.write( "/7
\n" ); document.write( "x= 2000 gallons -the capacity of tank\r
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