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Write an inequality to represent the real-world problem. Then explain how you created the inequality. You have cavities and you are looking for a cheaper dentist. Dentist A costs $50 for the visit and $20 per cavity. Dentist B costs $70 for the visit and $5 per cavity. When would Dentist B be cheaper than Dentist A?

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lovefashiongirl
If you have less cavities dentist b would be cheaper but if you only have 1 cavity dentist a would be cheaper
20x+50= 5x+70

x = number of cavities
use the subtraction property of equality and solve for x 
20x+50 = 5x+70
-5x -50    -5x - 50

15x = 20

Then you divide 20 by 15
15x = 20
-----   -----
15      15

x= 4/3

Thats what I got sorry if its wrong :(

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