BillieÍs monthly cell phone bill includes the cost of cell phone service, 15% tax on the cost of the cell phone service, and a $

Question

3 years ago

6

BillieÍs monthly cell phone bill includes the cost of cell phone service, 15% tax on the cost of the cell phone service, and a $

9.25 data fee. BillieÍs monthly cell phone bill totals $61.
What is the cost of the cell phone service before tax is added?

Mathematics

1 answer:

dem82 [27] · Answer 1 · 2022-08-06T09:56:30+03:00

dem82 [27]3 years ago

6 0

X - <span>the cost of cell phone service before tax is added

</span> $x+15\%x+9.25=61
\\x+ 0.15x=61-9.25
\\1.15x=51.75
\\x= \frac{51.75}{1.15}
\\x= 45$ <span>
</span>