document.write( "Question 1173216: Mum is 3 times as old as I am. she was 30 when I was born. what are our ages? \n" ); document.write( "

Algebra.Com's Answer #798406 by MathTherapy(10555) $\"\"$ $\"About$

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\n" ); document.write( "Mum is 3 times as old as I am. she was 30 when I was born. what are our ages?
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Let my age be I
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document.write( "Then mum's is: 3I
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document.write( "Since mum was 30 when I was born, mum will ALWAYS be 30 years older than me.
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document.write( "Therefore, we get: 3I = I + 30
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document.write( "Solve that for I to get my age. Add 30 to I to get mum's age!
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document.write( "That's it!! \n" );
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