SOLUTION: The average age of the groom in a marriage for a given age of the bride can be approximated by the model y = −0.00428x^2 + 1.442x − 3.136 20 ≤ x ≤ 55 w

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: The average age of the groom in a marriage for a given age of the bride can be approximated by the model y = −0.00428x^2 + 1.442x − 3.136 20 ≤ x ≤ 55 w      Log On


   

Question 851350: The average age of the groom in a marriage for
a given age of the bride can be approximated
by the model
y = −0.00428x^2 + 1.442x − 3.136
20 ≤ x ≤ 55
where y is the age of the groom and x is the
age of the bride.
For what age of the bride is the average age
of the groom 30?
Answer in units of years
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi, 

f(x) = −0.00428x^2 + 1.442x − 3.136

Using a graphing calculator

30 = −0.00428x^2 + 1.442x − 3.136 

  x = 25, the bride's age