a cell phone company charges a monthly fee of $0.25 for each text. message the monthly fee is $30.00 and you owe $59.50. how many text messages did you have

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alana2304170 alana2304170

14-10-2017
Mathematics

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a cell phone company charges a monthly fee of $0.25 for each text. message the monthly fee is $30.00 and you owe $59.50. how many text messages did you have

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jdoe0001 jdoe0001 · Answer 1 · 2017-10-14T22:27:26+02:00

now, the cell company charges a monthly usually for network access and routing to the device, this company charges 30 bucks monthly for it.

after that, you pay for the txt messages you use, the more you use, the more you pay, in this case is 25 cents for each.

so if you use say hmm 100 txt messages, then you owe for a month 30 + 0.25(100)

and if you use "x" txt messages, then you owe 30 + 0.25x.

[tex]\bf \stackrel{cost}{y}=\stackrel{monthly~fee}{30}+\stackrel{txt~charges}{0.25x}\implies 59.50=30+0.25x \\\\\\ 29.5=0.25x\implies \cfrac{29.5}{0.25}=x\implies 118=x[/tex]