document.write( "Question 1156131: Mr.Karikari is five times as old as Eric.In ten years time Mr Karikari will be thrice as old as Eric.What is their present ages.
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Algebra.Com's Answer #778825 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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let e = Eric's present age
\n" ); document.write( "let k = K's present age
\n" ); document.write( "Write an equation for each statement
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\n" ); document.write( "Mr.Karikari is five times as old as Eric.
\n" ); document.write( "k = 5e
\n" ); document.write( "In ten years time Mr Karikari will be thrice as old as Eric.
\n" ); document.write( "k + 10 = 3(e+10)
\n" ); document.write( "distribute the 3
\n" ); document.write( "k + 10 = 3e + 30
\n" ); document.write( "k = 3e + 30 - 10
\n" ); document.write( "k = 3e + 20
\n" ); document.write( "replace k with 5e, from the 1st statement
\n" ); document.write( "5e = 3e + 20
\n" ); document.write( "5e - 3e + 20
\n" ); document.write( "2e = 20
\n" ); document.write( "e = 20/2
\n" ); document.write( "e = 10 yrs is Eric's age
\n" ); document.write( "then
\n" ); document.write( "5(10) = 50 yrs is K's age
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\n" ); document.write( "Confirm solutions in the statement
\n" ); document.write( "\"In ten years time Mr Karikari will be thrice as old as Eric\"
\n" ); document.write( "50 + 10 = 3(10+10)
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