Wednesday

April 1, 2015

April 1, 2015

Posted by **GLORIA** on Friday, July 2, 2010 at 9:41am.

- ALGEBRA II -
**drwls**, Friday, July 2, 2010 at 10:21amSolve

x + y = 8.5 together with

xy = 18.

Try a substitution method,

y = 18/x

x + 18/x = 8.5

x^2 -8.5x + 18 = 0

(x-4)(x-4.5) = 0

Take it from there

**Answer this Question**

**Related Questions**

math-word problems with quadratics - I have 5 questions... 1) The sum of two ...

Math - When factoring a trinomial that is in the format Ax^2 + Bx + C, the ...

PreCalc - Find the maximum product of two numbers whose sum euqals 124. Let's ...

Math - Two numbers have a product of 3 1/5 and a sum of 3 3/5. One of the ...

math 5th grade - two numbers have a product of 3 1/5 and a sum of 3 3/5. One of ...

math - Find the two numbers that multiply to the product number and add to the ...

math URGENT!!!! - i have a list of 5 different numbers. the sum of 2 of the ...

math/ algebra - how can i find the numbers Quadratic equation the sum of 2 whole...

Algebra 2 - What is the maximum product of two numbers whose sum is 22? What ...

Advanced Math - 1.Tasha believes that she can rewrite the difference 120-36 as a...