Answer:
[tex]30x+85y\leq 250[/tex]
Step-by-step explanation:
Cost of each part is [tex]\$85[/tex]
Cost of working one hour is [tex]\$30[/tex]
Let number of hours worked be [tex]x[/tex] and
number of parts bought be [tex]y[/tex].
The maximum amount of money that John can spend is [tex]\$250[/tex].
From the question we have
[tex]30x+85y\leq 250[/tex]
The required inequality is [tex]30x+85y\leq 250[/tex].