document.write( "Question 895480: angel's father is twice her age. If the product of their ages are 450, how old are they?
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Algebra.Com's Answer #542849 by JulietG(1812)\"\" \"About 
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F = 2A
\n" ); document.write( "F * A = 450
\n" ); document.write( "Substitute the known value of F from the first equation into the second
\n" ); document.write( "F * A = 450
\n" ); document.write( "(2A) * A = 450
\n" ); document.write( "Multiply
\n" ); document.write( "2\"a%5E2\"= 450
\n" ); document.write( "Divide each side by 2
\n" ); document.write( "\"a%5E2\"=225
\n" ); document.write( "Take the square root of each side
\n" ); document.write( "a = 15
\n" ); document.write( "If Angel is 15, then her father is twice that, or 30
\n" ); document.write( "15 * 30 = 450
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