Question

Question #96ecf

Answer 1

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`