Thursday

April 2, 2015

April 2, 2015

Posted by **Mary jo** on Tuesday, April 7, 2009 at 8:40pm.

5r-3s=2

3r 5s =42

r=-40

is this right.

4x+5y=7

5x-4y=5

Decide whteher the pair of line is parallel, perpindular, or n

I said is was parallel. Tell me if this right.

- Math -
**Reiny**, Tuesday, April 7, 2009 at 11:09pmin your first question, you found only the one variable, you still have to find s

Besides that, you have a typo in the second equation.

in your second problem,

the slope of the first equation is -4/5

the slope of the second one is 5/4

notice they are negative reciprocals of each other.

What did you learn about that situation?

- Math -
**Latoya Harris**, Thursday, February 23, 2012 at 11:54am-3(7r-5)=-48

can u help me solve this problem

**Answer this Question**

**Related Questions**

Math/Check - I have a few problems I need you to take a look at and tell me if ...

Algebra/math - I have a few problems I need you to take a look at and tell me ...

algebra - I have a few problems I need you to take a look at and tell me if I ...

Algebra - I have a few problems I need you to take a look at and tell me if I ...

Algebra/no response yesterday - I have a few problems I need you to take a look ...

math - Is (5,2) a solution of 4x-2y=-6 I said no, am I right? I am working on ...

math elimination method - elimination method really confuses me. solve by ...

algebra - Is (5,2) a solution of 4x-2y=-6 I said no, am I right? I am working on...

Geometry - Describe the locus of all points, in space, that are 5 cm from line ...

MATH - Which statement is true about a triangular prism? a. It has exactly 1 ...