Answer:
500 miles
Step-by-step explanation:
Let
y -----> the rental cost
x ----> the number of miles in a day
we have
Company A
[tex]y=0.20x+110[/tex] -----> equation A
Company B
[tex]y=0.30x+60[/tex] -----> equation B
Equate equation A and equation B and solve for x
[tex]0.20x+110=0.30x+60[/tex]
[tex]0.30x-0.20x=110-60[/tex]
[tex]0.10x=50[/tex]
[tex]x=500\ miles[/tex]
For x=500 miles the rental costs for company A and Company B are the same