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- sure, no problem ma'am.
- I'm back now, shall we proceed our unfinished conversation?
- yes that's right, ma'am. The mathematical model written in the board is representing the previous company 's profit.
- -x²+80x1500=o
- as you proposed earlier, we have to determine our target number of magazines to be sold in order to avoid the previews negative profit...
- we have to use that mathematical model, where x is the magazines to be sold. In other words we're going to find the value of x.
- -x²+80x1500=o
- so how now, eh??
- using that model -x²+80x1500=o, we're going to use factorization, that would result to x=30 and x=50
- -x²+80x1500=o
- how to find the value of x, then??
- in substituting the 30 and 50 to the factorial method ....
- we're going to get (-1000) and (-5000). But our goal is to have a positive profit.. What now?..
- don't worry, ma'am. Multiplying both negatives will result to a positive 5000000. That's why the value of x is 50 and 30.
- that's terrific!! indeed a good work, mister Sandsman...
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