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Solving systems of equations

1. Use substitution to solve the system of equations:     -x + 2y=7      x - 3y = 3 2. Solve the system of equations by the elimination method a.  2x+ y = -17     x - y = 2 b. 3x + y =... more

11/14/12

solve for X: x/2+x/6=2

solve for X in the equation

11/14/12

area of rectangle

a rectangle has an area of 48 sq cm and a length of 16 cm. what is the width of the rectangle?

11/14/12

need to make graph with dates of occurance on bottom and times of day going up the other side.

will also need to plot second line (like in a scatter plot or line graph). The point is to show the baseline points all Then need to plot times of those days the kid did the behavior. how do i do... more

11/14/12

7-y=-2 is the answer 9 or 5

I dont know which 1 is right my brother says 9 but i say 5 but i just started learing this in class and i need help

11/14/12

Why is it necessary to add a decimal point when you are dividing a numerator and a denominator?

Why is it necessary to add a decimal point when you are dividing a numerator and a denominator?

11/13/12

how do you do algebra

how to do math

A linear function is represented by f(x)=2x+7. What would be the parallel to the function?

How would you show a parallel graph to the function usin f(x)=2x-7?

11/13/12

solve triangle. b=14 c=18 angleB=50 degrees

there are two cases to the problem. thats all i know.

11/13/12

In regards to the big bang heory, where did the matter come from to have the big bang?

I believe in the creationist theory, my question is posed toward darwinist...

11/13/12

if i have 436 x 67 how do I get the product by subtracting?

My daughter has this problem:   Laura found 67 x 436 by multiplying and subtracting. Show how Laura found the product. I showed my daughter the multiplication method and then used division for... more

The cheerleaders are making a rectangular banner for a football game. The length of the banner is 30ft. The cheerleaders can use no more than 96 ft of trim arou

The cheerleaders are making a rectangular banner for a football game. The length of the banner is 30ft. The cheerleaders can use no more than 96 ft of trim around the outside of the banner. Whst... more

11/13/12

what are the common factors of 12

what are the common factors of 12

11/13/12

2x^3+9x^2-5x>0

to solve the inequality, graphing and interval notation

11/13/12

What are the steps that need to be taken for this equation? 5(2x-1/2)+5/2+(x+1/2)+x+3x = 15.5

What are the steps that need to be taken for this equation? 5(2x-1/2)+5/2+(x+1/2)+x+3x = 15.5.

11/13/12

how can i write a letter

how can i write a leter

11/12/12

a recipe calls for 3 cups of flour. all you have in the kitchen is a talespoon. if you need to triple the recipe,how many tablespoons of flour will need?

a recipe calls for 3 cups of flour. all you have in the kitchen is a tablespoon. if you need to triple the recipe, how many tablespoon of flour will you need?  

11/12/12

teachers should encourage students to use cellphones why or why not ?

 accrding to this article written by William B. Bradford cellphone use in classrooms affecting todays generation writing and communication skills.  

11/12/12

The radius of a circle with 12 = cords of 3.75"

I am calculating a circluar bolt patern and need the radius on the circle with 12 bolts spaced 3.75"  (cord) apart

11/12/12

negative exponents and negative numbers

If you have -3 with a -4 exponent  

11/12/12

What is a monomial?

What is it used for? Why was it brought up and what do i need to know about it?

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