I attached a picture of how I worked out the answer
Answer:
For more than 500 minutes
Step-by-step explanation:
Let x be the number of minutes.
<u>First company</u> charges:
$0.029 per minute, then $0.029x for x minutes
and a $2 monthly fee.
In total, $(0.029x+2)
<u>Second company</u> charges:
$0.033 per minute, then $0.033x for x minutes
with no monthly fee.
If the charges for the first company are cheaper, then

Multiply this inequality by 1,000:

Slope = (y2 - y1) / (x2 - x1)
(10,2)....x1 = 10 and y1 = 2
(19,4)...x2 = 19 and y2 = 4
now we sub
slope = (4 - 2) / (19 - 10) = 2/9 <==
Answer:
x=-10
Step-by-step explanation:
3x · 3x=9x-11x>20
-2x>20
÷-2 -2
___________-
x=-10
Hope this helps ∞