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

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Question 36726: Find values for m and b in the following system so that the solution to the system is (-3,4).
5x + 7y = b
mx + y = 22
Click here to see answer by venugopalramana(3286)

Question 36736: Solve the following system by using either addition or substitution. If a unique solution
does not exist, state whether the system is dependent or inconsistent.
10x + 2y = 7
y = -5x + 3
Click here to see answer by venugopalramana(3286)

Question 36728: . Solve the following system by addition. If a unique solution does not exist, state
whether the system is inconsistent or dependent.
x + 5y = 10
-2x � 10y = -20
Click here to see answer by venugopalramana(3286)

Question 36727: . Solve the following system by addition. If a unique solution does not exist, state
whether the system is inconsistent or dependent.
2x + 3y = 1
5x + 3y = 16
Click here to see answer by venugopalramana(3286)

Question 36890: (2,-1)m=3
Click here to see answer by checkley71(8403)

Question 36939: A movie theater charges $8.00 for adults, $4.50 for children, and $6.00 for senior citizens. On one day 405 tickets were sold for a total $2320.00. If there are twice as many children tickets as adult tickets, then how many of each group were sold?
Click here to see answer by checkley71(8403)

Question 37043: 3(x-2)=8
Click here to see answer by checkley71(8403)

Question 37046: by looking at two linear equations, how can you tell that the corresponding lines are paralell?
Thank YOu
Click here to see answer by stanbon(75887)

Question 37059: Write an equation of the line that passes through the given point and has the givent slope. Use the equation to find two other points on the line. Check your solutions.
(-2,2); m = 3
Click here to see answer by checkley71(8403)

Question 37111: Please help me solve this problem.
-3/8 < -1/4x + 1/8 < 5/8
Click here to see answer by AnlytcPhil(1806)

Question 37096: Determine the points of intersection using algebra.Check using graphing and substituition......a..3x=y-1=0,2x=y-6
Click here to see answer by checkley71(8403)

Question 37088: Write the equation of a line parallel to the x-axis and passing through (-8,6)
i just know y=mx+b.. and i dont know where to go from there. thanks
Click here to see answer by checkley71(8403)

Question 37120: When a number is subtWhen a number is decresed by 3 and the reult is doubled the answer is equal to the original number. Find the number.
Click here to see answer by vidhyak(98)

Question 37187: could you explane to me why i got this marked wrong and how i can correct it?
here's what they asked: "find the equation of a line that passes through the origin and the following points." (2,-2)
my answer: y-(-2)=0(x-2)
:) thanx a bunch!!
Click here to see answer by fractalier(6550)

Question 37131: Find the slope of the line through given points.
(3,1) and (5,8)
Click here to see answer by fractalier(6550)

Question 37089: Please help:
-3/8<-1/4x+1/8<5/8
Click here to see answer by fractalier(6550)

Question 37126: 1/2t-3=1/4t-9
Click here to see answer by fractalier(6550)

Question 37189: it's me again... not sure as to what i did wrong on this one.
the directions are to give the coordinates of the point where each line crosses the y-axis. y = -3x
my answer: (-3,0) (o,1) do you mind helping with this one? thanx!! :)
Click here to see answer by fractalier(6550)

Question 37076: -1/3 < -1/4x + 1/8 < 5/8
Click here to see answer by fractalier(6550)

Question 37193: x/3 - y/2 = - 10/3
I Need Help With This Elimination Method Problem Involving Fractions. Fractions Confuse me. Fractions are Not My friend!!!!!!!!!!!!!
Click here to see answer by fractalier(6550)

Question 37041: LIghthouse - Height(feet)
----------------------------
Currituck - 162
Bodie Island - 165
Ocracoke - 65
Cape Hattress - 193
Cape Lookout -165
***What is the interquartile range?
Click here to see answer by fractalier(6550)

Question 37249: I need help solving this problem. I am confused on where to begin. The problem is 3x=6x+27. How would I go about solving this. I am horrible in Math and need your help. It is greatly appreciated.
Click here to see answer by stanbon(75887)

Question 37210: Find the slope of a line perpendicular to a line with the given slope.
3
--
4

A step-by-step answer on how you did it would be great, I'm having trouble understanding it.
Click here to see answer by stanbon(75887)

Question 37207: Write the equation of the line L satisfying the given geometric conditions.
L has y-intercept (0,2) and is perpendicular to the line with equation 2x-3y=6
I am able to solve this style of equation when the line is parallel and when the y variable is already by itself. I can't seem to figure this one out. Help, please!

Click here to see answer by Nate(3500)

Question 37259: Find the slope from the following pairs of points:
(5,-2)&(9,2) (1,-5)&(3,1) (0,6)&(2,6)
Click here to see answer by checkley71(8403)

Question 37302: please help me with the substitution method.
3(y-1)=2(x-3)
3y-2x=-3
------------
y=3x
y=3x+1
-------------

Click here to see answer by checkley71(8403)

Question 37427: Given f(x) = 5x + 1, find f(a + 2)
Click here to see answer by vidhyak(98)

Question 37444: Solve the following system of linear inequalities by graphing and stating coordinates in words..
x + 2y < 3 and 2x � 3y < 6
Click here to see answer by josmiceli(19441)

Question 37522: We have a quiz and I forgot how to simplify this: 5x to the 12th y square/10xy to the 9th
Click here to see answer by fractalier(6550)

Question 37549: here it says to divide using synthetic division. I don't understand how to do that. The problem is A to the 7th-2a to the 6th=19 divided by A to the 2nd
Click here to see answer by stanbon(75887)

Question 37553: Another problem just like the last one I couldn't figure out
16x^-7y^-2/4x^5y^2
Click here to see answer by fractalier(6550)

Question 37466: Hi will you please explain to me how to determine whether each relation is linear. Here is one problem:
y=-4
Click here to see answer by fractalier(6550)

Question 37434: Graph f(x) = 4x + 1 explain the graph points in words.
Click here to see answer by fractalier(6550)

Question 37433: Graph f(x) = 3x + 2 explain in wordthe points to graph.
Click here to see answer by fractalier(6550)

Question 37611: Find the slope of the sides of rectangle ABCD having vertices A=(1,4) and
B=(-5,3).
Click here to see answer by venugopalramana(3286)

Question 37611: Find the slope of the sides of rectangle ABCD having vertices A=(1,4) and
B=(-5,3).
Click here to see answer by josmiceli(19441)

Question 37730: When solving a linear inequality, do you always need to solve for y?
Click here to see answer by checkley71(8403)

Question 37783: You have at least $30 in change in your drawer, consisting of dimes and quarters. Write an inequality that shows the different number of coins in your drawer.
Click here to see answer by stanbon(75887)

Question 37815: Find the slope and y-intercept for each line that has a slope amd y-intercept.
y=3x-9
Click here to see answer by Cintchr(481)

Question 37781: You have at least $30 in change in your drawer, consisting of dimes and quarters. Write an inequality that shows the different number of coins in your drawer.
Click here to see answer by fractalier(6550)

Question 37729: Why is it true that any two points satisfying a linear equation will give you the same graph for the line represented by the equation?
Click here to see answer by fractalier(6550)

Question 37897: What is x in a line that contains the point (2,6) and (x,15), with a slope of 3?
Click here to see answer by fractalier(6550)

Question 37913: State the equation of the line perpendicular to 3x-2y-6=0 and having the same x-intercept as 8x-y=4
Thanks, SUMEET
Click here to see answer by Paul(988)

Question 37910: State the Equation of the line perpendicular to 4x-y=8 and having the same y-intercept as 7x-2y=4
Thanks, SUMEET
Click here to see answer by Paul(988)

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