Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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Question 915700: Solve for the variable in each equation
1. 2x+5=-7
2. 1/6n+2=9
I need help on these. Im so lost in math class. Please help me asap!! Due: Friday. Thanks a bunch
Click here to see answer by tutoringisfun(17)

Question 915713: write an equation of the line containing the given point and parallel to the given line. (7,-3);5x-2y=3
Click here to see answer by josgarithmetic(39617)

Question 915805: Please help me solve this equation by using the distributive property to rewrite without parentheses. -y (-y+y)
Click here to see answer by stanbon(75887)

Question 916255: Which points have x- or y-coordinate values greater than 8 [for example, (9, 3) or (�4, 10)]
Click here to see answer by ewatrrr(24785)

Question 916314: Graph y = 5x � 12 and y � 5x = 19. Are the lines parallel, perpendicular, or neither?
Click here to see answer by MathLover1(20849)

Question 916314: Graph y = 5x � 12 and y � 5x = 19. Are the lines parallel, perpendicular, or neither?
Click here to see answer by Fombitz(32388)

Question 916319: -20=-4x-6
Click here to see answer by MathLover1(20849)

Question 916395: Please help me solve this equation by determining which points are solutions to the given system.
Y= -1/2x subtract 5
Y= 3/4x subtract 10
Points: (4, -7), (0, -10), (3, -9/2)
Click here to see answer by MathLover1(20849)

Question 916426: what is 6x - 8y = -32 in slope-intercept form?
Click here to see answer by stanbon(75887)

Question 916434: I have a box of nickels and dimes. When I counted the money, I was surprised to see that I have exactly $10. Then it occurred to me that if my nickels were dimes and my dimes were quarters, I would have $21.25. How many dimes and nickels are in my box?
Click here to see answer by josmiceli(19441)

Question 916422: what is the x-intercept of the line 8x - 4y = 40?
Click here to see answer by mananth(16946)

Question 916455: (-6,-12) and (-18,-24)
Trying to find the slope of the line passing through the given points.
Mag
Click here to see answer by jim_thompson5910(35256)

Question 916405: Write an equation of the line through each pair of points in slope-intercept form.
(2, 4) and (-4, -11)
Click here to see answer by mananth(16946)

Question 914842: I need help trying to solve this problem. Thank you in advance, for helping me out. I really appreciate your time and efforts. Have a terrific day :) Here is the question? Find the equation of the line that passes through the two given points. Write the equation in slope-intercept form, if possible:
passes through (3,0) and (3,1)
Click here to see answer by lpcruz(7)

Question 916530: What are the steps I must take to find the equation of right bisector. I get lost after finding the slope. For example the endpoint are A(-7,-1) and B(5,5)
Click here to see answer by ewatrrr(24785)

Question 916678: Solve 8x2 + 6x + 5 = 0.
Click here to see answer by josh_jordan(263)

Question 916712: (-4,2) and (2,4)I need to write the equation of each line passing through the given pair of points
Please explain this
Sandy new student
Click here to see answer by jim_thompson5910(35256)

Question 916713: I need to write the equation and graph the line that passes through the given point and has the slope indicated.
(3,-1)Slope 1
Please explain this
Sandy new student
Click here to see answer by jim_thompson5910(35256)

Question 916730: write each equation and sketch the graph of each line with the given slope and y intercept. Slope 4 and y intercept 2. Please help! Sandi
Click here to see answer by rothauserc(4718)

Question 916701: A salesman gets $40 per day as wages and $4.50 as commission for every pair of athletic shoes he sells in a day.
Write an equation to represent how many pairs of shoes p he must sell in a day to make $112 on that day.

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

Question 916793: Trying to find the slope and "Y"-Intercept of the lines for the Equation listed below. I also need to graph it, if possible please show this process so that I can apply it to further problems. Regards Grace
Y=7/3X -1/4

Click here to see answer by MathLover1(20849)

Question 916807: Trying to find the slope and "Y"-Intercept of the lines for the Equation listed below. I also need to graph it, if possible please show this process so that I can apply it to further problems. Regards Grace
Sorry I put the wrong problem down for my initial question. GZ
Y=4/3x+1/2

Click here to see answer by rfer(16322)

Question 916724: in 2008, median earnings, including commissions for car salespersons was $21.43 per hour or $857.31 per week. dan receives $400 per week for selling new and used cars. in addition, he receives 5% of the profit on any sales he generates.
a) if dan has sales that generate a profit of $4,000 what are his weekly earnings?
b) to equal the median earnings of a car sales person, dan would have to have sales that generate a profit of many dollars?

Click here to see answer by ewatrrr(24785)

Question 916832: To travel a fixed distance, the number of gallons -N- of gasoline needed is inversely proportional to the miles per gallon rating -P- of the car. A car that gets 28 miles per gallon needs 22 gallons to travel the distance.
a)find an equation of variation
b)how much gas will be needed for a car that gets 77 miles per gallon?
Click here to see answer by josgarithmetic(39617)

Question 916860: A flagpole 6.3m long is driven 1.4m into the ground what fraction of the pole is above the ground
Click here to see answer by rfer(16322)

Question 916830: Find an equation of variation in which y varies inversely as x and y = 5. Then find that value of y when x = 10
Click here to see answer by josgarithmetic(39617)

Question 916895: -12-x=8-3x
+x=8+x
-12=8-2x
-12=8-2x
-8 -8
___________
-20= -2x
-20/-2x
X= 10
Click here to see answer by josgarithmetic(39617)

Question 916895: -12-x=8-3x
+x=8+x
-12=8-2x
-12=8-2x
-8 -8
___________
-20= -2x
-20/-2x
X= 10
Click here to see answer by MathTherapy(10552)

Question 916784: find an equation of the line having the given slope and containing the given point m=-2,(5,8)
Click here to see answer by MathLover1(20849)

Question 916908: according to the American automobile association (AAA), the average annual cost of operating a standard-sized car, including gasoline,oil, tires, and maintenance decreased to $0.54 per mile in 2009.
a) find a linear equation that relates the average cost C of operating a standard-sized car and the number X of miles it is driven.
b)what is the annual cost if you drive 15,000 miles?
Click here to see answer by stanbon(75887)

Question 917026: if x=-3 and y=4 find the value of x (3x+4y)
Click here to see answer by ewatrrr(24785)

Question 917075: The cost of a plumbing repair includes a fee of 50$ plus a cost of 15$ per hour. In a graph of the equation to model this situation, what does the 50$ fee represent
A. X-intercept
B. Slope
C. Y-intercept
D. Point of intersection
Click here to see answer by ewatrrr(24785)

Question 917074: The cost of a plumbing repair includes a fee of 50$ plus a cost of 15$ per hour. In a graph of the equation to model this situation, what does the 50$ fee represent
Click here to see answer by ewatrrr(24785)

Question 917292: There are some 25 paise coins and some 50 paise coins in a bag. The total number of coins are 140 and the amount in the bag is RS. 50.
Click here to see answer by nihar*2013(34)

Question 917295: By cross multiplication method, find such a two digit number such that, the digit at unit place is twice the digit at ten places and the number obtained by interchanging the digits of the number is 36 more than the original number.
Click here to see answer by simrankagad(1)

Question 917368: x+y+z=5
-2x-3y+2z=8
3x-y-2z=3
Click here to see answer by mananth(16946)

Question 917619: Solve the equation x(m+3)+y(m−8)=z(m−2) for m, assuming that x+y−z≠0. PLEASE HELP I AM STUCK!!!!
Click here to see answer by jim_thompson5910(35256)

Question 917640: find an equation of the line through (-1/4,6/5)
Click here to see answer by lwsshak3(11628)

Question 917640: find an equation of the line through (-1/4,6/5)
Click here to see answer by Alan3354(69443)

Question 917653: In this problem, the direct variation being represented is:
9y+4x=3.5
The problem also wants me to figure out the constant of variation.
I know the formula for a direct variation is y/x = k or y = kx
I also know that the constant of variation is k, but I am not sure how to find the constant variation of this problem.
Thank you!
Click here to see answer by jim_thompson5910(35256)

Question 917750: what the equation of the line with giiven slopen and y-intercept
m=3/4 b=-2 ?

Click here to see answer by Theo(13342)

Question 917782: Hi there, I need your help with the following equations please...
3x-10=2x-3
6+2x=8-3x
8y+9=7y+8

Click here to see answer by MathLover1(20849)

Question 917827: what is 8x + 6 = y in standard form ?
Click here to see answer by Fombitz(32388)

Question 917925: y-2x=4
y=2x
I need help graphing it please and solving it
Click here to see answer by Alan3354(69443)

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