document.write( "Question 674496: Joe is 10 years older than Bob. In 10 years Bob will be 3/4 as old as Joe. Find their present ages. \n" ); document.write( "

Algebra.Com's Answer #419269 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+b+\"$ = Bob's age now
\n" ); document.write( " $\"+b+%2B+10+\"$ = Joe's age now
\n" ); document.write( " $\"+b+%2B+10+\"$ = Bob's age in 10 years
\n" ); document.write( " $\"+b+%2B+10+%2B+10+\"$ = Joe's age in 10 years
\n" ); document.write( "-----------------
\n" ); document.write( " $\"+b+%2B+10+=+%283%2F4%29%2A%28+b+%2B+20+%29+\"$
\n" ); document.write( " $\"+4%2A%28+b+%2B+10+%29+=+3%2A%28+b+%2B+20+%29+\"$
\n" ); document.write( " $\"+4b+%2B+40+=+3b+%2B+60+\"$
\n" ); document.write( " $\"+b+=+20+\"$
\n" ); document.write( " $\"+b++%2B+10+=+30+\"$
\n" ); document.write( "Bob is 20 and Joe is 30
\n" ); document.write( "check:
\n" ); document.write( "In 10 years Bob will be 30
\n" ); document.write( "In 10 years Joe will be 40
\n" ); document.write( "Bob will be 3/4 of 40 which is 30
\n" ); document.write( "OK
\n" ); document.write( " \n" ); document.write( "

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