Answer:
[tex]12x+18y\geq 1,700[/tex]
[tex]x+y\leq 13[/tex]
[tex]x\geq 0[/tex]
[tex]y\geq 0[/tex]
Step-by-step explanation:
Let
x ----> the number of hours spent painting fences
y ----> the number of hours spent managing the laundry mat
we know that
you can only work a maximum 13 hours per week
so
[tex]x+y\leq 13[/tex] ----> inequality A
Remember that the word"at least" means "greater than or equal to"
so
[tex]12x+18y\geq 1,700[/tex] ----> inequality B
Remember that the number of hours cannot be a negative number
so
[tex]x\geq 0[/tex] ---> inequality C
[tex]y\geq 0[/tex] --> inequality D
therefore
The system of inequalities that describe the situation is
[tex]12x+18y\geq 1,700[/tex]
[tex]x+y\leq 13[/tex]
[tex]x\geq 0[/tex]
[tex]y\geq 0[/tex]