document.write( "Question 167371: Three exteenagers find the product of their ages is 26,390. Find the sum of their ages? \n" ); document.write( "
Algebra.Com's Answer #123324 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Three exteenagers find the product of their ages is 26,390. Find the sum of their ages? \n" ); document.write( "----------------- \n" ); document.write( "Since they're \"exteenagers\" they're all older than 19. The problem is to factor 26390 into 3 factors that are greater than 19. \n" ); document.write( "There's only one 2 factor in 26390, so only one factor is an even number. \n" ); document.write( "One approach is to factor it completely and the assemble 3 numbers greater than 19. \n" ); document.write( "26390 = 2 x 5 x 7 x 13 x 29 \n" ); document.write( "29 is OK by itself, so make 2 numbers >19 out of the remaining 4. \n" ); document.write( "2, 5, 7 and 13 \n" ); document.write( "2 times 5 or 7 is less than 20, so that's no good. \n" ); document.write( "2*13 = 26 and 5*7 = 35 works, so it's: \n" ); document.write( "26, 35 and 29 \n" ); document.write( "BTW, there's no algebraic solution to this problem. It's trial and error. \n" ); document.write( " \n" ); document.write( " |