Danh has positive 220 dollars in his bank.He Withdraws negative 50 dollars every day for one week straight.
How much money will Danh have after one week?
Total amount of money he withdraw in a week: 50x7= $350
This is the amount AFTER he withdraw money: 220-350=$-130
Steps to solve: You first have to find how much he had owed altogether which was 350.Then you had to subtract 250 by 350, but first you had to change the subtraction sign to a addition sign. After that you had to change positive 350 to negative 350. Then you add the numbers together and you will have -130 because the bigger number gets the sign when there are two different number signs.
Thursday, October 14, 2010
Thursday, October 7, 2010
Explain a situation where you might need to compare and order integers
There are several situations when you will need to compare and order integers. Firstly you will have to know what an integers is before comparing or ordering them.An integer is either a positive or negative number including zero. Positive integers are all the whole numbers greater than zero. Negative integers are all negative numbers less than zero.Now that you know what are positive and negative integers lets get to how we compare and order them then, what kind of situations we will have them in. Comparing and ordering integer is quite easy where is some examples. First i will use the positive ones. Comparing: 5<7 -7<-5 notice that 7 is a bigger number so the first example was right but the second one -5 was bigger becuase -7 is smaller than -5. Bascially we can call the negatives under sea level so -7 will be deeper than -5 so -5 would be bigger.Now comparing integers are easy you will just put them in order. Example: you have 5 numbers -6,3,0,-3,4 now to put them in order -6,-3,0,3,4.Now finally there are several situation where you might need this skill. Firstly when you are in math class.Secondly when you owe money and how much money you have.Lastly when you are trying to find the difference of the depht or height of 2 or more things. Keep in mind there are more situations when you need to compare and order integers!
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