document.write( "Question 1010229: The ages of a parent and child add up to 30years. In 3years times, the parent will be 4 times as old as the child. Fine the current ages of the parent and the child. \n" ); document.write( "
Algebra.Com's Answer #625679 by fractalier(6550)\"\" \"About 
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Call their ages NOW, p and c. Thus
\n" ); document.write( "p + c = 30 so we have p = 30 - c
\n" ); document.write( "Then
\n" ); document.write( "p + 3 = 4(c + 3)
\n" ); document.write( "Substitute in and get
\n" ); document.write( "30 - c + 3 = 4(c + 3)
\n" ); document.write( "33 - c = 4c + 12
\n" ); document.write( "21 = 5c
\n" ); document.write( "c = 4.2 years
\n" ); document.write( "p = 25.8 years
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