document.write( "Question 522777: carol is 25 years older than her cousin amanda. in 18 years ,carol will be twice as old as amanda will be. how old are carol and amanda now? \n" ); document.write( "
Algebra.Com's Answer #346991 by Maths68(1474)![]() ![]() You can put this solution on YOUR website! Let \n" ); document.write( "Present age of Carol = c \n" ); document.write( "Present age of Amanda = a\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Carol is 25 years older than her cousin amanda. \n" ); document.write( "c=a+25............(1)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "In 18 years \n" ); document.write( "Carol will be = c+18 \n" ); document.write( "Amanda will be = a+18 \n" ); document.write( "Then \n" ); document.write( "carol will be twice as old as amanda will be \n" ); document.write( "c+18=2(a+18) \n" ); document.write( "c+18=2a+36 \n" ); document.write( "c=2a+36-18 \n" ); document.write( "c=2a+18............(1)\r \n" ); document.write( "\n" ); document.write( "Put the value of c from (1) to (2) \n" ); document.write( "a+25=2a+18 \n" ); document.write( "a-2a=18-25 \n" ); document.write( "-a=-7 \n" ); document.write( "Multiply by -1 both sides of the equation \n" ); document.write( "a=7\r \n" ); document.write( "\n" ); document.write( "Put the value of a in (1)\r \n" ); document.write( "\n" ); document.write( "c=a+25 \n" ); document.write( "c=7+25 \n" ); document.write( "c=32\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Present age of Carol = c = 32 years old \n" ); document.write( "Present age of Amanda = a = 7 years old\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |