Sunday, May 28, 2006

Camille's Growing Post #3

1.) What is the difference between an algebraic expression and an equation (hint: One contains this and the other doesn't)? Give an example of both an expression and an equation.

An algebraic expression is made up of the signs and symbols of algebra without an = sign while an equation is a mathematical statement that says that two expressions have the same value; any number sentence with an = sign.

Examples:
Algebraic expression:
5 - 3x
Equation:
y + 9 = 15

2.) What is a variable and why do we use one in algebra?

A variable is an unknown quantity that we are trying to solve for.
Variable is a letter used to represent a number value in an expression or an equation.


3.) 3.) solve for N.

9-4=5

12+5+5=22

22/2=11

N=11

4.) Solve the following equations. Show all of the steps that are needed.

a.) 3n+4n+7=2n+12

b.) 8n-(4+9)=11

c.) (8-3)n+7n+8=4n+40

5.) For this question you need to create a T-Chart and a graph to plot your data from this question onto.

You are having a race against your friend, except you are on foot and he is on his bike. You both know that if you are in your bike you will be faster so your friend gives you a head start of 3 minute. If you can run 400m per minute, and your friend can bike 700m per minute, who will be the first to make it to the finish line 2000m away?

I won the contest!!! (Yes)




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2 Comments:

At 7:49 PM, Blogger Mr. Reece said...

Camille I can't find a single area that needs improvement. Your answers were clear and precise. Great job

 
At 2:08 PM, Blogger Mr. Reece said...

Your mark is 30/30

congrats on a job well done

 

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