document.write( "Question 1158958: Sally is four times Linda’s age. In 10 years’ time the sum of their ages will be 75.\r
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Algebra.Com's Answer #781951 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "Sally is four times Linda’s age. In 10 years’ time the sum of their ages will be 75.\r
\n" ); document.write( "\n" ); document.write( "Determine how old is Sally now.
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As their ages sum to 75 in 10 years' time, their ages now sum to 75 - 2(10) = 75 - 20 = 55 
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document.write( "Let Sally's age be S
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document.write( "Then Linda's is: 
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document.write( "We then get: 
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document.write( "4S + S = 220 ------ Multiplying by LCD, 4
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document.write( "5S = 220
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document.write( "Sally, or  \n" );
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