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## Grade Three Math Worksheets

Duane Said:

Help with 8th**grade**

**math**project? Linear equations?

We Answered:

let x = number of cowslet y = number of ducks

x+y=15 (each animal only has one head)

4x+2y=44 (each cow has 4 legs, each duck has 2)

now you have a system of equations that you can solve by elimination or substitution

x=15-y

4(15-y)+2y=44

60-4y+2y=44

16=2y

8=y

7=x

7cows

8ducks

Heidi Said:

i have extreme issues understanding**math**?

We Answered:

A linear function is a graph that has a straight line from the points. equation is y=mx+b m= slope b= y intercept (where the line goes through the y axis.Distance is the space between to points on a graph. formula is found on here you cant type it. http://www.teacherschoice.com.au/maths_l…

Slope shows the incline of the line on the graph to find that out use formula (m=(y2-y1)/(x2-x1)) M=slope. you need to points to do that.

ex. point a: (1,2) point b: (4,5) find the slope you would go m=(5-2)/(4-1) =3/3 =1 slope is 1,1 up 1 to the right 1.

midpoint is when you need to find the middle of 2 points. the formula is

(x1+x2)/2,(y1+y2)/2... see the coma separating it when u get the answers it will give you a cooranite. (x,y)...... website to help http://math.about.com/library/blmidpoint…

Quadratic functions here is a website.... http://www.analyzemath.com/quadraticg/qu…

hope i helpeddd :))

good luck =]

Victoria Said:

**Math**Homework? PLEASE HELP?

We Answered:

its not complex math, give it a try and you will not only earn your money but get some practice in your math skills