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May 23, 2015

Homework Help: Math

Posted by Algebra HELP!!! on Wednesday, November 5, 2008 at 11:42am.

1) Solve: 8x C (6x + 4) = 8
x = -2


2) -7x > 1/15
the solution set is: {x | x > -105}


3) Solve 5> -4x + 4 or 10 -4x +3

the solution to the inequality is:
[-, -7/4] U [-1/4,]


4) Use < or > to make the statement true: -9 < 3

5) Graph the inequality on a plane: 5x + 6y 30 not even sure where to start with this one

6)Solve using the multiplication principle.
-5/6x = -7/8
The solution is? 21/20

7) Soybean meal is 14% protein; cornmeal is 7% protein. How many pounds of each should be mixed together in order to get 280-lb mixture that is 11% protein?

How many pounds of the cornmeal should be in the mixture?
How many pounds of the soybean meal should be in the mixture?
how do i solve this?

8) Solve the following system of equations.
X + 9y = 2 (1)
X = 6 C 9y (2)
What is the solution of the system?

9) Solve: 5/2x + 1/4x = 7/4 + x
The solution is x = ?

10) Find the slope, if it exists, of the line containing the pair of points
(8,1) and (10,-6)
The slope m = ?

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