document.write( "Question 1024611: Kevin is 6 years older than Timothy, and 4 years ago Kevin was twice as old as Timothy. Find their present ages. \n" ); document.write( "

Algebra.Com's Answer #640008 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+k+\"$ = Kevin's age now
\n" ); document.write( "Let $\"+t+\"$ = Timothy's age now
\n" ); document.write( "---------------------------
\n" ); document.write( "(1) $\"+k+=+t+%2B+6+\"$
\n" ); document.write( "(2) $\"+k+-+4+=+2%2A%28+t+-+4+%29+\"$
\n" ); document.write( "----------------------
\n" ); document.write( "(2) $\"+k+-+4+=+2t+-+8+\"$
\n" ); document.write( "Substitute (1) into (2)
\n" ); document.write( "(2) $\"+t+%2B+6+-+4+=+2t+-+8+\"$
\n" ); document.write( "(2) $\"+t+%2B+2+=+2t+-+8+\"$
\n" ); document.write( "(2) $\"+t+=+10+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+k+=+t+%2B+6+\"$
\n" ); document.write( "(1) $\"+k+=+10+%2B+6+\"$
\n" ); document.write( "(1) $\"+k+=+16+\"$
\n" ); document.write( "-------------------
\n" ); document.write( "Kevin is 16
\n" ); document.write( "Timothy is 10
\n" ); document.write( "------------
\n" ); document.write( "check:
\n" ); document.write( "4 yrs ago Kevin was 12
\n" ); document.write( "4 yrs ago Timothy was 6
\n" ); document.write( "Kevin was twice his age
\n" ); document.write( "OK \n" ); document.write( "

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