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Question

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the_ocean_girl · Answer

http://prntscr.com/9lmru3 I was helping you but you closed the question

the_ocean_girl · Answer

You're going to confuse yourself with a 2 variable inequality. Replace the A and B in the expressions with the variable m. Then make the inequality for which company B would charge more than company A

the_ocean_girl · Answer

No, it's asking for what mileage company A would charge less than company B. So it would be the inequality m+109<0.80m+65. Now we need to solve.

the_ocean_girl · Answer

Good!

the_ocean_girl · Answer

Nope, that sums it up I believe. :)

mathstudent55 · Answer

Let y be the cost, and m be the miles. Company A: the total cost is a fixed cost y = 109 Company B: there is a fixed cost plus a mileage cost y = 65 + 0.8m We want to know for what values of m, the cost of A is less than the cost of B. 109 < 65 + 0.8m 44 < 0.8m 0.8m > 44 m > 55 Company A charges less for mileages more than 55 miles.

the_ocean_girl · Answer

@mathstudent55 We already solved this problem :) Also, direct answers is against the CoC, as I'm sure you are well aware. Please refrain from giving users a direct answer from now on. Thank you :)

mathstudent55 · Answer

@the_ocean_girl You wrote above: "No, it's asking for what mileage company A would charge less than company B. So it would be the inequality m+109<0.80m+65. Now we need to solve." The solution to that inequality is m < -220 which makes no sense at all. Let me see if I understand you correctly. It's ok for you to help the poster by giving him the incorrect inequality which leads to an incorrect answer, but it's not ok for me to to guide him to the correct inequality and solution. I also notice that fact that you got two medals for giving an incorrect answer, and I got no medals and your complaint for violating the CoC for guiding the poster to the correct inequality and answer. I'm liking OS more and more. One more point. By the time I wrote my response, the poster already had the correct answer, which I don't understand how he arrived at since he also had the incorrect inequality to start with. He went from this "so look at the last one we have to put those two questions together and solve it so M+109=.80m+65" to this ".80m>44 and that would be m>50" How do you go from an incorrect equation and arrive at a correct inequality?