SOLUTION: John is comparing the costs for one month's usage of two cell phone companies. Company A charges $40 per month plus $8.50 per gigabyte of date used. Company B charges $30 per month

Question 1148778: John is comparing the costs for one month's usage of two cell phone companies. Company A charges $40 per month plus $8.50 per gigabyte of date used. Company B charges $30 per month plus $10.50 per gigabyte of data used. How many gigabytes of data would have to be used for Company A and Company B to charge the same amount?
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
x, number of data gigabytes used

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