document.write( "Question 1023779: In 10 years, a child's age will be 4 years less than triple her current age. Find the child's current age I know what x is but as far as how to write it i cant figure it out . \n" ); document.write( "

Algebra.Com's Answer #639218 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"A%2BB%2BC=180\"$
\n" ); document.write( " $\"C=180-30-45\"$
\n" ); document.write( " $\"C=105\"$
\n" ); document.write( "So then use the law of sines,
\n" ); document.write( " $\"sin%28A%29%2Fa=sin%28B%29%2Fb\"$
\n" ); document.write( " $\"sin%2830%29%2F20=sin%2845%29%2Fb\"$
\n" ); document.write( " $\"b=20%2A%28sin%2845%29%2Fsin%2830%29%29\"$
\n" ); document.write( " $\"b=20sqrt%282%29\"$
\n" ); document.write( " $\"b=28.284\"$
\n" ); document.write( "and,
\n" ); document.write( " $\"sin%28A%29%2Fa=sin%28C%29%2Fc\"$
\n" ); document.write( " $\"c=20%2A%28sin%28105%29%2Fsin%2830%29%29\"$
\n" ); document.write( " $\"c=20%2A1.93185\"$
\n" ); document.write( " $\"c=38.637\"$
\n" ); document.write( " \n" ); document.write( "

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