Saturday

October 25, 2014

October 25, 2014

Posted by **sarah** on Tuesday, October 14, 2008 at 12:39am.

Jess say's the square of the sum of 17 plus some number will equal his mother's age squared. If jess' mother's age squared is 2209, what number must be used to make the equation true?

- math -
**drwls**, Tuesday, October 14, 2008 at 12:49amWrite the equations and solve them.

Let the "some number" be x. Let his mother's age be y.

(17 + x)^2 = y^2

y^2 = 2209

Hint: the square root of 2209 is 47. So you can eliminate y as an unkown.

You will be left with a quadratic equation to solve. Use the usual methods.

- math -
**rachel**, Tuesday, October 14, 2008 at 6:06ampls..help me

about this common monomial factor.

how to solve it,and how can i use the short method.

thank you. :)

- math (to rachel) -
**drwls**, Tuesday, October 14, 2008 at 8:01amPlease post your question separately using "Post a New Question" and explai: * what monomial factor you are talking about,

* why it is "common" and

* what the "it" is that you are trying to solve.

**Answer this Question**

**Related Questions**

7th grade math - jess, marie, and emily are sisters. The sum of their ages is ...

Pre-algerbra - Ok, It is riddle. Jack is married to Jill. There son wants to ...

physics - jess = 65kg, mary 55kg. Jess on trapeze together after pick up 5.5ms-1...

Math - Jack is married to Jill. Their son, Junior, asked each of them to reveal ...

5th Grade word problems - Mary is 1/6 the age of her mother this year. Next year...

statistics - 1. If we select a birth at randam, what is the probability the ...

Grammar - The patient's father died at age 69 of an MI, the patient's mother ...

Algebra II - Five years ago, Jane was 1/5 the age of her mother. Now she is 1/3 ...

mathematics - the average age of a family of six is 25 years.The average age of ...

Math - The sum of the ages of Monica and her mother is 70. Monica is 4 less than...