Tuesday

September 2, 2014

September 2, 2014

Posted by **MIchaela** on Thursday, December 7, 2006 at 11:02pm.

Find two numbers whose difference is 42 and product is -405

Set up 2 equations and 2 unknowns.

x - y = 42

xy = -405

Then rearrange the second so y = -405/x, and substitute this value of y into the first equation. Can you take it from here?

x = 27

y = 15

i need help on this christmas trivia we were assigned to today please help

**Answer this Question**

**Related Questions**

Calculus - Find two numbers whose difference is 132 and whose product is a ...

Reiny! Reiny! Reiny! Answer Check and HW Help! - Translate to a system of ...

pre-calculus - Find two rational numbers such that the difference is 3 times the...

Math - Suppose you have two numbers. The difference of the two numbers is 12. ...

Math - Among all pairs of numbers whose difference is 88, find a pair whose ...

Math - Find two numbers whose sum is 50 and whose difference is 6. So I'm going ...

Calculus - Find the sum of two numbers whose sum is 70 and whose product is as ...

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

arithmetic - 1. The first and last term of an A.P are, a and l respectively, ...

arithmetic - 1. The first and last term of an A.P are, a and l respectively, ...