You just purchased a cellular phone and are trying to determine to which cell phone company you will give your business. When you contacted the Talks-A-Lot Company, they were offering a monthly plan of $40 for 600 minutes and $0.35 for each minute exceeding the 600 minutes. In the Sunday paper you see an ad for the Chat-Away Company, which offers a monthly plan of $50 for 600 minutes and $0.10 for each minute exceeding the 600 minutes. How many minutes would you have to talk over and above the 600 minutes for the cost to be the same with both companies? What would be the equal cos

Question

anonymous · Answer

t to be the same with both companies? 
    What would be the cost when the minutes are the same?

If you plan to talk for 1000 minutes, which company should you hire? Please show your total cost for both companies to prove your answer.

anonymous · Answer

solve 
$$40+0.35x=50+.10x$$ to get where they are equal.

anonymous · Answer

we can safely ignore the 600 since the question says "minutes over 600"

anonymous · Answer

$$40+.35x=50+.10x$$
$$.25x=10$$
$$x=\frac{10}{.25}=\frac{1000}{25}=40$$

anonymous · Answer

so if you talk for 640 minutes they are the same, and if you talk for more than that, i you should to with the cheaper rate

anonymous · Answer

okay, please see the comment under the question, it continues to the question