Questions on Algebra: Equations answered by real tutors!

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Question 223366: HELP!! I just need help with those two... Can you please help me?!?!?
Solve each system by elimination.
1)2x-y+z=-2 ~~~~ 2)x-2y+3z=12
x+3y-z=10 ~~~~ 2x-y-2z=5
x +2z=-8 ~~~~ 2x+2y-z=4
Click here to see answer by stanbon(57962)

Question 223415: 3p-4=2p+23
Click here to see answer by rfer(12729)

Question 223412: 15R-5=10R+15
Click here to see answer by rfer(12729)

Question 223408: x-6/7+4=15
Click here to see answer by jim_thompson5910(28708)

Question 223448: This makes no sense to me : ( Please help. Not sure if I wrote it correctly but it reads p divided by p over 4= 5/2
p/ (p/4)= 5/2

Click here to see answer by jim_thompson5910(28708)

Question 223419: please help me solve this equation:
Click here to see answer by jim_thompson5910(28708)

Question 223419: please help me solve this equation:
Click here to see answer by ankor@dixie-net.com(15746)

Question 223419: please help me solve this equation:
Click here to see answer by Earlsdon(6294)

Question 223482: 18- (-f)= 91
Click here to see answer by jim_thompson5910(28708)

Question 223491: -23=x+36

Click here to see answer by jim_thompson5910(28708)

Question 223557: Please solve 6(5g+2)=30g
Click here to see answer by drj(1380)

Question 223613: Solving Equation with Algebraic Fractions:
7x-6/1-3x=x+2/x-7
In words: 7x-6 over 1-3x equals x+2 over x-7
Should have 2 solutions.

Click here to see answer by jsmallt9(3296)

Question 223603: If 3x-5y/7x-4y = 3/4, find the value of .
Many thanks!
Click here to see answer by jsmallt9(3296)

Question 223602: Find dy/dx given that y=1+x^(2)e^(y)
Click here to see answer by jsmallt9(3296)

Question 223623: 16=1-5b+8b
Click here to see answer by tutor_paul(490)

Question 223550: x+1=9x^3 + 9x^2 solve the polynomial equation.
Been working on this one for awhile and i cant seem to get this one. 4 answers it needs.

Click here to see answer by Edwin McCravy(8999)

Question 223638: how do solve and graph these answers on the number line..m+1 3/8=5 what is can you show me step by step how to solve this problem.
Click here to see answer by stanbon(57962)

Question 223724: find the roots of x^2-8=17. show your work.
Click here to see answer by tutor_paul(490)

Question 223744: Q = 20,500,000 - 500P
how do I solve for P?
Thanks in advance.
SJ
Click here to see answer by jim_thompson5910(28708)

Question 223728: find the roots of the following problems:
5squareroot of x,-x=6.

and x^2-8=17.

show all work

Click here to see answer by RAY100(1637)

Question 223727: the science club wants to find out the height of the schools flagpole. they found out that it the rope attached to the top off the pole was lengthened it formed an angle of 60 degrees wih the ground 14 ft from the base of the pole what is the height of the pole...show all work
Click here to see answer by RAY100(1637)

Question 223749: Please help me solve this equation:
Click here to see answer by drj(1380)

Question 223749: Please help me solve this equation:
Click here to see answer by edjones(7569)

Question 223746: The equation y=-1777x+27,153 can be used to predict the number y of gun deaths in the United States x years after 2000, that is, x=0 corresponds to 2000, x=3 corresponds to 2003, x=6 corresponds to 2006, and so on. Predict the number of gun deaths in 2006 and 2008. In what year will the number of gun deaths be 11,160?
The predicted gun deaths in 2006 will be_____.
The predicted gun deaths in 2008 will be _____.
The predicted number of gun deaths will be 11,160 in the year _____.
Click here to see answer by brich(7)

Question 223763: Please help me solve these problems: y=-7x+4 Find the slope, if it exists.
Use the equation below and the indicated value to find an ordered pair that is a solution of ( ,27) y=5x-3.
Decide whether the pair of lines is parallel, perpendicular, or neither.
2x+4y=6 and 4x-2y=9.
Find the intercepts and then use them to graph the equation 3x+y=6.
Thank you.
Click here to see answer by rfer(12729)

Question 223802: how do you solve 1/3w+6=-2
Click here to see answer by drj(1380)

Question 223830: six more than 5 times the number is the same as 9 less than the twice the number. find the number
Click here to see answer by drj(1380)

Question 223874:
Click here to see answer by derricksbunny(1)

Question 223932: Parking lot A charges a set fee of 7.00 plus 2.00 per hour. Parking lot B charges 5.00 plus 3.00 per hour. What is the break even point for the two options?
Ive tried alot of things but cant figure it out!!
I also have a ti 84 graphing calc, but i dont know how to use it for this kind of problem.
Click here to see answer by rfer(12729)

Question 223944: -7a-9=6
also
5x+14=-x
Click here to see answer by rfer(12729)

Question 223944: -7a-9=6
also
5x+14=-x
Click here to see answer by drj(1380)

Question 223917: solving equations.
8(6+r)=40
need answer.
Click here to see answer by rfer(12729)

Question 223976: 2x+x+3=8 x=? What does x equal
Click here to see answer by drj(1380)

Question 224056:
Click here to see answer by LtAurora(115)

Question 224062: Please convert kilometers to minutes.
Click here to see answer by solver91311(17077)

Question 224067: Find the area of the region bounded by the parabolas f(x)=2x^(2), g(x)=3x^(2)+5, and the line y=8.
Help would be much appreciated. Thanks in advance.
Judy
Click here to see answer by solver91311(17077)

Question 224128: rewrite x-7y=14 in function notation
Click here to see answer by nerdybill(7003)

Question 224209: express ^3sqrt(8a^3 y^2) using rational exponents
Click here to see answer by rapaljer(4667)

Question 224263: Find the slope-intercept equation of the line that has the given characteristics.
Slope 4.7 and y-intercept (0,-5)

the slope-intercept equation y=_____
Click here to see answer by rfer(12729)

Question 224259: translate into mathmatical symbols the quanity of four minus x divided by 3
Click here to see answer by rfer(12729)

Question 224208: When a single card is drawn from an ordinary 52-card deck, find the odds in favor of getting the 4 of spades?
Click here to see answer by rfer(12729)

Question 223881: 225 students play a teamsport at a high school. these students represent 3/8 of the total student population. how many students attend the school?
Click here to see answer by ankor@dixie-net.com(15746)

Question 224329: Find equation of the line with points m=6/7 (4,-3)
Click here to see answer by drj(1380)

Question 224213: true or false: the graph of the polar equation r^2 = 3sin2(theta) is a limacon?please explain.
Click here to see answer by solver91311(17077)

Question 224331: Find the indefinate integral of f(x)=5x - 3x^(2) + xsqrt(x) + 7e^(x)
Help with this problem would be much appreciated, Judy.
Click here to see answer by rapaljer(4667)

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