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Sum of Consecutive Odd Integers - easy way to understand

By: Guest
Date: Mon-Oct-8-2012-
Response
0
for example your question is, "the sum of three consecutive numbers is equal to 30, what is the largest number"
we have three unknown numbers, but we know something about their relationship to each other, they are consecutive numbers, so one numbers come right after the last one, like 1, 2, and 3, or 1, 1+1, and 1+2. We also know that the three numbers added together equal 30. So now that we know how our numbers interact with each other, we have to assign a variable. If we assign the lowest number as the variable "x" and we know that the other two numbers follow one right after the other, we can deduce that the equation should look like this 

x+(x+1)+(x+2)=30

so next we combine like terms, using the communitive property of addition, we can rewrite our equation to look like this

(x+x+x)+(1+2)=30
or 3x+3=30

then we subtract 3 from both sides

3x=27

then we divide both sides by 3

x=9

so now we know what the smallest number of the three is equal 9, but if you look at the question again, it's not asking what the smallest number is, but the largest number, but because we know that the largest number is x+2, we know that the largest number is equal to 11 and we're done

[d] By: Guest
Date: Mon-Oct-8-2012
Response
What is 1 + 100



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for restaurants, kiosk, and any other retails business completely free. It can be used as windows cashier system or as full blown POS. You will able to print to kitchen, display orders on the kitchen screen, manage inventory, employee, report, customer loyalty offers, employee management, delivery address track and much more, all for free.

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