document.write( "Question 851350: The average age of the groom in a marriage for
\n" ); document.write( "a given age of the bride can be approximated
\n" ); document.write( "by the model
\n" ); document.write( "y = −0.00428x^2 + 1.442x − 3.136
\n" ); document.write( "20 ≤ x ≤ 55
\n" ); document.write( "where y is the age of the groom and x is the
\n" ); document.write( "age of the bride.
\n" ); document.write( "For what age of the bride is the average age
\n" ); document.write( "of the groom 30?
\n" ); document.write( "Answer in units of years \n" ); document.write( "

Algebra.Com's Answer #512721 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
\n" );
document.write( "Hi, 
\n" );
document.write( "f(x) = −0.00428x^2 + 1.442x − 3.136
\n" );
document.write( "Using a graphing calculator
\n" );
document.write( "30 = −0.00428x^2 + 1.442x − 3.136 
\n" );
document.write( "  x = 25, the bride's age \n" );
document.write( "

\n" );