SOLUTION: A room contains 144 chairs. the number of chairs per row is two less than twice the number of rows. find the number rows and the number of chairs per row. How would you solve this?

Algebra.Com
Question 228269: A room contains 144 chairs. the number of chairs per row is two less than twice the number of rows. find the number rows and the number of chairs per row. How would you solve this? Thank you for any help you can give.
Answer by JenniferTutors(83)   (Show Source): You can put this solution on YOUR website!
Here's how I worked this problem:
144 Chairs
CPR (chairs per row)= 2R - 2
(R=row) (two less than twice the number of rows)
Now, I factored 144 and noticed that
I plugged the 9 into the the equation as 9 rows:

Solve further:


So, in there are 16 chairs per row and 9 rows, And those two number multiplied equal 144.

RELATED QUESTIONS

a room contains 144 chairs the number of chairs per row is two less than twice the number (answered by mananth)
A room contains 114 chairs. The number of chairs per row is two less than twice the... (answered by fractalier)
A room contains 112 chairs. The number of chairs per row is five less than three times (answered by josgarithmetic)
In an office building, a room contains 54 chairs. The number of chairs per row is three... (answered by ptaylor)
In one room are 144 chairs. The number of chairs per row is two less than twice the... (answered by stanbon)
a room contains 54 chairs. the number of rows is 3 less than the number of chairs per... (answered by richard1234)
In an office building, a room contains 90 chairs. The number of chairs per row is three... (answered by edjones,ankor@dixie-net.com)
A room contains 500 chairs. The number of chairs per row is five less than the number of... (answered by Alan3354)
A room contains 500 chairs. The number of chairs per row is five less than the number... (answered by josgarithmetic)