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Question 550370: very unsure how to solve this or what numbers to plug into the equations there are so many combinations. If I had to guess I would guess "No Solutions"
Solve the system Write your answer using parentheses and no spaces. Example (2,0,-3) or write "No Solution" for questions with no solution.
x + y + z = 6
2x - y + 2z = 6
-x + y + 3z = 10
Click here to see answer by TutorDelphia(193)

Question 550400: How do you find an equation written as AX+By=C when you have m=-1/5, (-3,0)
Click here to see answer by JBarnum(2146)

Question 550501: 9x + 11y = 86
9x � 2y = -5
Click here to see answer by jim_thompson5910(35256)

Question 550543: Find the equation of a line in slope intercept form that passes through the point (0,4), and is perpendicular to the line y=6x+19
Click here to see answer by TutorDelphia(193)

Question 550651: What is the slope of the linear function whose graph is shown
(1,5) (0,2)
Click here to see answer by jim_thompson5910(35256)

Question 491348: Translate to an equation:
c $3 candles and v $2 votives total $24
Graph the equation and use the graph to determine three different combinations of candles and votives that total $24.
Click here to see answer by sarhjo29(2)

Question 550694: 4. Translate to an equation:
c $3 candles and v $2 votives total $24
Graph the equation and use the graph to determine three different combinations of candles and votives that total $24
Click here to see answer by stanbon(75887)

Question 550718: solve by substitution: 6x+8y=-16; -2x+y=20
Click here to see answer by jim_thompson5910(35256)

Question 550740: I need help please!!!!
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this -x + 4y = 0.5 -3x � 6y = 10.5
Click here to see answer by ankor@dixie-net.com(22740)

Question 550755: 10x + 7y = -120.5
-20x � 14y = 241

Click here to see answer by mananth(16946)

Question 550755: 10x + 7y = -120.5
-20x � 14y = 241

Click here to see answer by stanbon(75887)

Question 550715: solve the system of equations by graphing then classify the system: y=-x-8 9x-8y=-38
Click here to see answer by mananth(16946)

Question 550717: 10x + 5y = 52.5
30x � 7y = 80.5
Click here to see answer by mananth(16946)

Question 550676: Write an equation of the line perpendicular to the line given by 2x +3y =7 and having the same y-intercept as the line given 5x+ 2y =10
Click here to see answer by mananth(16946)

Question 550796: How to solve this in linear equation:49.6*x-207.8=0?
Click here to see answer by mathstutor494(120)

Question 550846: Write the slope-intercept for the line with the given slope that contains the given point.
m=8/3 ;(3,-4)
Click here to see answer by jim_thompson5910(35256)

Question 550845: Find the slope-intercept for the line with the indicated slope and y-intercept.
slope -4 ; y-intercept (0,-3/5)
Click here to see answer by Alan3354(69443)

Question 550905: Simplify. Do not use negative exponents in the answer.
Click here to see answer by TutorDelphia(193)

Question 550904: simplify (a3b)(ab)4
Click here to see answer by josmiceli(19441)

Question 550908: I need the derivative of : y = e^x - e^-x
The answer is supposed to be y' = e^x + e^-x
I want to know how to do this.
Is there a solver on algebra.com to do this?
Thank you
Click here to see answer by Alan3354(69443)

Question 550917: y-4=-1/2(x-6) into standard form?
Click here to see answer by ankor@dixie-net.com(22740)

Question 550906: I need the derivative of : y = 1 / log x
The answer is supposed to be y' = -ln 10 / x(ln x) ^2
I want to know how to do this.
Is there a solver on algebra.com to do this?
Thank you
Click here to see answer by Edwin McCravy(20055)

Question 550943: Determine if (-5/2,1) is a solution to -2x+3y=2
Click here to see answer by jim_thompson5910(35256)

Question 550944: Given the linear equation y= -5/6+2, find the y-coordinates of the points (-6), (0), and (6). Plot those points and graph the linear equation.
Click here to see answer by jim_thompson5910(35256)

Question 550909: Simplify. Remember to use absolute-value notation when necessary. If a root cannot be simplified, state this. 5√-1/32
Click here to see answer by ankor@dixie-net.com(22740)

Question 551046: Find the slope -intercept equation for the line with the indicated slope and y-intercept.
slope= -4
y-intercept= (0,-3/5)
Click here to see answer by mananth(16946)

Question 551043: Find the x-and y-intercepts and graph the equation plotting the intercepts.
-4x -5y=30
Click here to see answer by mananth(16946)

Question 551044: Andrea's body temperature dropped from 103.2 degree's Farenheit at 3am, to 99.7 degree's Farenheit at 8am. Find the rate of change in her body temperature.
Click here to see answer by TutorDelphia(193)

Question 551090: 1. Write the equation of the line passing through the points (0, -4) and (-2, 2. Write the equation of the line with a slope of -5 and a y-intercept of (0,3).
3. Write the equation of the line passing through the points (0, -4) and (-2, 4. Write the equation of the line passing through the points (-6,1) and (-4,2).

Click here to see answer by jim_thompson5910(35256)

Question 551156: What is an equation of the line that passes through the point (−1,−3) and is parallel to the line 6x−y=4. Express your answer in slope-intercept form.
Click here to see answer by mathstutor458(57)

Question 551166: How do I find the value of k so that the line passing through has the given slope m in the problem
(-k+1,3), (3,k+3), m=3
Click here to see answer by lwsshak3(11628)

Question 551157: Translate to an equation.
f=folder's at $0.30 apiece
and n=notebooks at $1.50 apiece
The total of folders and notebooks is $12
Graph the equation, and use the graph to determine three different combinations of folders and notebooks that total $12
Click here to see answer by fcabanski(1391)

Question 551165:
slope=m= y2-y1=55.9-59.5
x2-x1=1984-1964
m=-3.6= -0.18
20
y-intercept =b=+61
Can someone explain the steps to find +61 .I course understand all that is needed for finding the line of best fit. I just don't know where b=+61 comes into play.

Click here to see answer by Alan3354(69443)

Question 551229: A triangle has base 12 centimetres and 8 centimetres . How much do you have to increase each dimension equally so that the area is tripled?
Click here to see answer by Alan3354(69443)

Question 551287: I'm trying to determine the total cost of a loan, using the formula: Total cost = (sale price*rate)time + Sale Price My Question is what does the last sale price mean?

Click here to see answer by fcabanski(1391)

Question 551301: the line parallel to y = -2x +3 through (-4,3)
Click here to see answer by TutorDelphia(193)

Question 551308: Solve using addition-subtraction method to solve. and check
4x+6y=16
3x-2y= -1
Click here to see answer by Alan3354(69443)

Question 551286: Determine the total cost of your loan, using the formula: Total cost = (sale price*rate)time + Sale Price
Click here to see answer by richard1234(7193)

Question 551481: So I have been doing some workbooks to refresh myself in algebra lately to get back into school and a ran into a problem that for the life of me I cannot understand, its a Linear Equation that in order to find the value of X you have to eliminate the fractions to break it down, now the question in the book reads:
"Solve The Following Equation: 5 - (1/6)x = {-(2/3)}x "
now i have worked it down several times but it never matched what the answer in the workbook of " 30-x=9x "
from what the book says it should be its easy to find the solution is " X=3 " but when I work down the original equation I get this:
5 - (1/6)x = {-(2/3)}x ***convert to fractions**
5/1 - x/6 = -(3x/2) **next multiplied each term by the LCD of 6,or 6/1**
5/1*6/1 - x/6*6/1 = {-(3x/2)}*6/1 ***ok......
here is where i am confused, after canceling out the denominators my ending equation is " 30-x= -9x " now it has been along time since i have done any math assignments but i thought a negative multiplied by a positive stayed a negative # but my book says it becomes positive? is that right? Is -3x*6= to 9x? if so why? i thought like-signs always made a positive in multiplication

Click here to see answer by scott8148(6628)

Question 551536: A student makes a$9.25 purchase at the book store with $20 bill. The store has no bills, the change is in quarters and fifty cent pieces. There are 30 coins. How many is quarters and how many fifty cent pieces?
A disc jockey must play 12 commercial spots during 1 hr. of a radio show. Each comm. is either 30 sec. or 60 sec. long. If the total comm. time during 1 hr. is 8 min, How many 30 sec. comm. were played that hour? How many 60sec. comm?
Click here to see answer by mananth(16946)

Question 551557: 14x+6y=24
6x+14y=12
Click here to see answer by mananth(16946)

Question 551581: Use scientific notation to divide the following two numbers. Express the answer using scientific notation; retain at least three decimal places.
(1.83 � 106) / (1.2 � 104)

Click here to see answer by KMST(5328)

Question 551663: If a child were four times his present age, he would be half as old as his father is now. If his father is 30 years old, how old is the child now?

Click here to see answer by ankor@dixie-net.com(22740)

Question 551575: Short Answer: Simplify the following expression, and rewrite it in an equivalent form with positive exponents.
(6x-1)-2

Click here to see answer by ankor@dixie-net.com(22740)

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