Mountain Dew

1/28/2013

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So today I have to compare two different prices of different quantities of Mountain Dew soda.  So first of all there is the 12 pack which is a total of 144 ounces of soda, and costs $4.99.  The other quantity is the 1 liter (33.8oz), and that costs $1.99. Now you would probably want to know which one of these is a better deal, so you aren't wasting your money.  The way you know which deal is better is by finding out which one costs less per ounce.  So here is how you do that

All that you really have to do to solve this is divide the price by the number of ounces, or set it up as a unit rate.  But its easier just to divide.  So first you have to divide 4.99 by 144.  When you do that you get a number that rounds off to .03 which means that each ounce of soda in a 12 pack has a value of $.03.  Then you divide 1.99 by 33.8 and you get a number that rounds off to .06 which means that each ounce of Mountain Dew in a 1 liter bottle is worth $.06. So with this information you known that it is cheaper to buy a 12-pack of Mountain Dew over a 1 liter bottle.  And that is how you compare prices.
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First Semester Math Memories

1/14/2013

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This semester I have learned a lot about math since I have been taking algebra, which is a new type of math to me.  It has been pretty easy to understand, but some things were harder.  For example, at the end of last quarter we learned about solving more complex equations and systems by using methods such as substitution and elimination.  These topics could get a little tricky and confusing to me, and they still are, but not as much as they were at first.  My teacher explains everything very well in class and on the videos we watch for homework, so even if you don't get it at first you will eventually understand.  So this is basically all that has recently been hard for me this semester in algebra.
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