http://threeacts.mrmeyer.com/25billionapps/

So our math class is trying to figure out when this contest will end. The contest is, the person who downloads the 25 billionth app wins a $10,000 iTunes card. So we are using numbers to figure it all out. The address above will take you to the site of the contest that occurred in 2012. Here is my math that will lead you to the date it should have ended.

             First I found an estimate of the number of apps downloaded in a minute. Which is 34,189 apps per minute. At 6:27 February 24 it is 24,658,507,655, we need to reach 25,000,000,000. So if you subtract those numbers you get 341,492,345. To find how many minutes are left till we reach 25 billion, you divide 341,492,345 by 34,189 you get 9,988 minutes. To get how many hours are left, divide that by 60 and get 166 hours. To get how many days it takes to get to 25 billion you divide that by 24 and get almost 7 days. If you add 7 days to February 24 the thing should end March 2nd at 6:30pm.  I would begin downloading apps around March 2nd about 5:30pm.

I think I’m doing well in math. I have a B so that’s good.I think I deserve a B, I know I’m not good at math but I do try very hard. I am very positive about adding and subtracting negative numbers. I thought it would be hard but it’s not that bad. Multiplying negative numbers is easy but not dividing.  I think i need some help with my equations with variables on both sides. I just got started but I’m not doing well. I really like math this year, I think we should do more on the board. i understand more when we work together. I also like khan academy because we get to work at our own passe. In elementary I was bad at math but I’m starting to get better.

The square root of 22 is 4.7. First you have to find the perfect squares on both sides of 22. On the left is 16, the square root is 4. The right is 25, square root of 25 is 5. Then you have to find out which number is closest to 22,16 or 25. It will be 25, and the square root is 5, so you estimate what the square root of 22 would be. I estimated it to be 4.7…

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