document.write( "Question 157557: xul is two years older than his sister Maria. the sum of their ages is greater than 32. describe maria's age. \n" ); document.write( "

Algebra.Com's Answer #116193 by jojo14344(1513) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"x\"$ = Maria' age
\n" ); document.write( " $\"x%2B2\"$ = Xul's age
\n" ); document.write( "condition: $\"x%2Bx%2B2%3E32\"$ , sum is over 32 years
\n" ); document.write( "continuing,
\n" ); document.write( " $\"2x%3E32-2\"$ ---> $\"2x%3E30\"$
\n" ); document.write( " $\"cross%282%29x%2Fcross%282%29%3Ecross%2830%2915%2Fcross%282%29\"$
\n" ); document.write( " $\"x%3E15\"$ ,
\n" ); document.write( "Conclusion: Maria's age should be greater than 15 years for their sum will be greater than 32 years.
\n" ); document.write( "Check: if $\"x=15years\"$ Maria's age
\n" ); document.write( "going back to the condition:
\n" ); document.write( " $\"15%2B15%2B2%3E32\"$
\n" ); document.write( " $\"32=32\"$ --------> not greater than 32.
\n" ); document.write( "if $\"x=16years\"$ Maria's age
\n" ); document.write( " $\"16%2B16%2B2%3E32\"$
\n" ); document.write( " $\"34%3E32\"$ --------> CORRECT!
\n" ); document.write( "Maria's age should be 16 years or more to satisfy the condition.
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo \n" ); document.write( "

\n" );