document.write( "Question 415589: Mike is 6 years younger than Cassie. Twelve years ago, CCassie was twice as old as Mike was. How old is each now?\r
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document.write( "Also, Shalane is 14 and her grandmother is 54. How many years ago was her grandmother 6 times as old as Shalane?\r
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document.write( "If you could just help a bit, that would be great. Thankyou \n" );
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Algebra.Com's Answer #291312 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Mike is 6 years younger than Cassie. \n" ); document.write( "Twelve years ago, Cassie was twice as old as Mike was. How old is each now? \n" ); document.write( "---- \n" ); document.write( "m = c-6 \n" ); document.write( "(c-12) = 2(m-12) \n" ); document.write( "--- \n" ); document.write( "Substitute for \"m\" and solve for \"c\": \n" ); document.write( "c-12 = 2(c-6-12) \n" ); document.write( "c-12 = 2(c-18) \n" ); document.write( "c-12 = 2c-36 \n" ); document.write( "c = 24 (Cassie's age now) \n" ); document.write( "m = c-6 = 18 (Mikes age now) \n" ); document.write( "================================= \n" ); document.write( " \n" ); document.write( "Also, Shalane is 14 and her grandmother is 54. How many years ago was her grandmother 6 times as old as Shalane? \n" ); document.write( "Shalane = 14 \n" ); document.write( "Grandma = 54 \n" ); document.write( "---- \n" ); document.write( "Equation: \n" ); document.write( "(54-x) = 6(14-x) \n" ); document.write( "54-x = 84 - 6x \n" ); document.write( "5x = 30 \n" ); document.write( "x = 6 (# of years ago) \n" ); document.write( "========================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============= \n" ); document.write( " \n" ); document.write( " |