document.write( "Question 1055: Elise is four times as old as Amanda. In ten years, Amanda's age will be half of Elise's. How old are they now? \n" ); document.write( "
Algebra.Com's Answer #314 by usyim88hk(158)![]() ![]() ![]() You can put this solution on YOUR website! I love this kind of question, let's start now \n" ); document.write( ": \n" ); document.write( "Let x be the age of Amanda, so now we know \n" ); document.write( ": \n" ); document.write( "x is Amanda's age (now) \n" ); document.write( "4x is Elise's age (now) \n" ); document.write( "x+10 is Amanda's age (after 10 years) \n" ); document.write( "4x+10 or 2(x+10) is Elise's age (after 10 years) \n" ); document.write( ": \n" ); document.write( "So now we know that 4x+10 is equal to (x+10)/2 because they are both the age of Elise after ten years, so now we can make an equation and solve it \n" ); document.write( ": \n" ); document.write( "4x+10 = 2(x+10) \n" ); document.write( ": \n" ); document.write( "Divide by 2 on both sides \n" ); document.write( ": \n" ); document.write( "2x+5 = x+10 \n" ); document.write( ": \n" ); document.write( "subtract x from both sides \n" ); document.write( ": \n" ); document.write( "x+5 = 10 \n" ); document.write( ": \n" ); document.write( "Subtract 5 from both sides \n" ); document.write( ": \n" ); document.write( "x=5!!! \n" ); document.write( ": \n" ); document.write( "So now we know that Amanda is five years old now, and Elise is 20 years old now \n" ); document.write( " |