Question #96ecf

1 Answer
Feb 26, 2017

Answer:

See explanation

Explanation:

This is one of those situations where you may substitute any value in either variable as long as it fits a rather 'wide' criterion (inequality)

Let the count of rattan chairs be #r# at $220 each
Let the count of plastic chairs be #p# at $150 each

Then we have

#220r+150p>3700#
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Or if you prefer:

Subtract #220r# from both sides

#150p>3700-220r#

Divide both sides by 150

#p> 74/3-22/15r#

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
To plot
set #p# as the equivalent of #y# on the x,y plane
set #r# as the equivalent of #x# on the x,y plane

#p->y#
#r->x#

Tony B