A cell phone company charges a monthly fee of $20 for the first 1000 text messages and 40 cents for each additional text message. MiriamÂs bill for text messages for the month of June is $49.20. How many text messages did she send that month?

Question

A cell phone company charges a monthly fee of $20 for the first 1000 text messages and 40 cents for each additional text message. MiriamÂs bill for text messages for the month of June is $49.20. How many text messages did she send that month?

kittiwitti1 · Answer

Equation:$$$20+40n, n\text{ being amount of additional text messages}$$

kittiwitti1 · Answer

$$20+40n=49.20\rightarrow40n=29.20\rightarrow n=\frac{29.20}{40}=?$$$$\text{since the 20 is for the first 1000 text messages add 1000 to the result you got above.}$$$$n+1000\rightarrow\frac{29.20}{40}+1000$$