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Mathematics 18 Online
OpenStudy (anonymous):

Please help! Solving Systems of Equations Approximately!

OpenStudy (anonymous):

OpenStudy (raveninneverland):

Okay, yeah. I think I can help. Hold on while I type it out.

OpenStudy (anonymous):

Okay, thanks

OpenStudy (raveninneverland):

As you can see by the table between years 0 and 5, every 5 years, Western Beach decreases 10 feet in width. Dunes beach, on the other hand, INCREASES 20 feet every 5 years. Between years 10 and 11, you can tell that each individual year, the Western Beach decreases 2 feet, while the Dunes Beach increases 5 feet. This is basically the pattern in which each beach erodes. For problem B, look at which years the two have the closest width. On the table, you can tell that between the years 11 and 12, they must have been the same width at some point in between those years. For problem C, all you have to do is study the table. Because of the width of the beaches before the erosion occurred, and since you can tell each year that Western Beach decreases 2 feet, and Dunes Beach increases 5 feet, you know that at some point, they are going to be the same width, even if it is not for very long. When you look at the differences between the years 11 and 12, you know that the beaches were the same width in between these years. The reason you know this is because in the year 11, Western Beach was a bigger width than Dunes beach, and at the end of year 12, Dunes Beach was bigger than Western Beach. This means that they were the same width at some point.

OpenStudy (raveninneverland):

I really hoped I helped! I'm pretty sure everything I said there is accurate, judging by the table. :P Let me know if I got anything wrong and I'll apologize! And good luck, friend!

OpenStudy (anonymous):

So, are those the answers or? (Thanks a lot for your help btw, I really appreciate it.)

OpenStudy (raveninneverland):

I think those should be the answers. I would reword it yourself, though, if you can. Especially if your school likes to check for plagiarism. It would also probably help to make the answers a bit shorter, if possible. I was explaining it really hard in hopes you would understand it a bit better once I was done. :P

OpenStudy (anonymous):

Oh, okay. Thanks so much dude (or whatever the feminine version of dude is), you're a lifesaver.

OpenStudy (raveninneverland):

Oh, it's all good man! (and don't worry, haha, I don't need gender specific titles or whatever) Hit me up if you got anything else that I might be able to help with, and I'll see what I can do!

OpenStudy (anonymous):

Okay. ^-^

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