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

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Question 69105: Mrs. Smith is 2 years more than 3 times as old as her son. If the difference between their ages is 22 years, how old is Mrs. Smith?
will the answer be 32
Click here to see answer by stanbon(75887)

Question 69111: If twice the square of a positive integer is 12 more than 10 times that integer, what is the integer?
Click here to see answer by rmromero(383)

Question 69108: If One number is 7 less than anoher. If 4 times the smaller number plus 2 times the larger number is 62, find the 2 numbers. will it be 8,15 did I do this right?
Click here to see answer by rmromero(383)

Question 69106: If x represent the number in each case: 3 more than a number is 7.
will the answer be 3x=-7

Click here to see answer by rmromero(383)

Question 69087: Solve the following system of linear inequalities by graphing
x-2y>4
x<4
Please help on this
Click here to see answer by checkley75(3666)

Question 69127: A value that is representative of a set of numbers is called what?
Click here to see answer by stanbon(75887)

Question 69126: can a equation be defined as?
1. a mathematical statement that two expressions are equal
or
2. any value for the variable that makes a true statement
or neither

Click here to see answer by stanbon(75887)

Question 69125: what is the best way to describe a solution to be be defined as?
1. a mathematical statement that two expressions are equal
or
2. any value for the variable that makes a true statement

Click here to see answer by stanbon(75887)

Question 69152: Write the equation of the line passing through each of the given points with the indicated slope. Give your results in slope-intercept form, where possible.
(Rewrite into standard form)
(0,5), m = -3/5
Click here to see answer by checkley75(3666)

Question 69165: write the equation of the line which has y-inercept (0,5) aNSD IS PERPENDICULAR TO THE LINE WITH EQUATION y = -3x + 1
Click here to see answer by stanbon(75887)

Question 69226: Solve the system by addition
5x-4y=-5
x-2y=-7
Please help solve this
Click here to see answer by checkley75(3666)

Question 69225: Solve the system by graphing
x+y=4
-x+y=2
PLease help solve this
Click here to see answer by checkley75(3666)

Question 69224: Solve the system by graphing
3x+y=-1
9x+3y=-3
Please help solve this
Click here to see answer by checkley75(3666)

Question 68732:
Click here to see answer by Nate(3500)

Question 68366: 1 linear foot is equal to?
Click here to see answer by Nate(3500)

Question 69185: 4x-3y=12
x+2y=14
Click here to see answer by checkley75(3666)

Question 69229: Solve the following system of linear inequalities by graphing
3x-y<2
x+y>2
Please help solve this
Click here to see answer by jim_thompson5910(35256)

Question 69338: Solve the following of linear equatins by graphing
x+2y<3
2x-3y<6
Please help
Click here to see answer by stanbon(75887)

Question 69339: Sally bought three chocolate bars and a pack of gum and paid $1.75. Jake bought two chocolate bars and four packs of gum and paid $2.00. Find the cost of a chocolate bar and the cost of a pack of gum.
Please help solve
Click here to see answer by checkley75(3666)

Question 69295: solve for a. 1/5a + 8 = -3/5(a - 15)
Click here to see answer by checkley75(3666)

Question 69228: Solve the following system of linear inequalities by graphing
x-y<3
x+2y>6
Please help solve this
Click here to see answer by checkley75(3666)

Question 69341: Solve the system by addition
2x-4y=7
4x+2y=9
Please help solve
Click here to see answer by checkley75(3666)

Question 69368: Is (1,-2) a solution of 3x-4y=12?

Thank you
Click here to see answer by bucky(2189)

Question 69402: Question: Line 1 has y intercept (0,5) and x intercept (4,0) Find the equation of line 1 in each case and then write it in standard form with integral coefficients. This is what I have, m=5-0=-5/4 slope then x1+x2/2=2-4/2=3.
y1+y2/2=0+4=2 x=3 y=2 . Now I don't know what to do. Please help
Click here to see answer by stanbon(75887)

Question 69429: find the equation of a line in standard form for a line that passes through (1,-3) and has a slope of -1/2
Click here to see answer by tutorcecilia(2152)

Question 69429: find the equation of a line in standard form for a line that passes through (1,-3) and has a slope of -1/2
Click here to see answer by funmath(2933)

Question 69306: Line AB has a slope of -6 and an x-intercept of 6. The y-value of point A is twice its x-value. Find the y-value of point A.
Click here to see answer by ankor@dixie-net.com(22740)

Question 69506: how is using one ,two or three variables to equations different from each other and how are they the same?
Click here to see answer by Nate(3500)

Question 69495: What is the difference in elevation between a plane flying 26,500 feet above sea leve, and a submarine traveling 650 feet below sea level.
Please help solve this.
Thanks
Click here to see answer by josmiceli(19441)

Question 69485: Simplify each algebraic expression
A 4a+9+3a-7
B 6 (3x+4) + 5 (2x-1)
Please help me on this
Thanks
Click here to see answer by justsmilexx(8)

Question 69492: question......write an equation in point slope form and slope intercept form of the line passing through (-12,1) and perpendicular to the line whose equation is 6x-y-4=0
Click here to see answer by stanbon(75887)

Question 69497: Evaluate each algebraic expression for the give value of the variable.
A x^2-2x+3 x=-1
B-x^2-7x x=-2
Please help solve this
Click here to see answer by justsmilexx(8)

Question 69530: Hi,
I need to find 3 solution for 6x-3/2y-12=12

Thanks
Click here to see answer by bucky(2189)

Question 69490: Use the order of operations to simplify each expression
A 36-24/4.3-1
b -8(-4 -5 (-3)

Please help solve this
Click here to see answer by tanimachatterjee(60)

Question 69564: L has y-intercept (0,2)and is perpendicular to the line with equation 2x-3y=6.
Click here to see answer by funmath(2933)

Question 69563: L has y-intercept (0, -3)and is parallel to the line with equation y= 2/3x + 1.
Click here to see answer by funmath(2933)

Question 69561: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept.
Slope: -2: y-intercept: (0,4)
Click here to see answer by funmath(2933)

Question 69560: Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible.
(-1,3)and (4,-2)
Click here to see answer by funmath(2933)

Question 69545: how do i graph?
y=3/4x+2
I know that the y intercept is (0,2)I will subsitute 4 for x that will give me
y=3/4(4)+2
y=3+2
y=5
so the other point is (4,5) now i am stuck on my graph
Click here to see answer by funmath(2933)

Question 69589: 2x+y=15
Click here to see answer by tutorcecilia(2152)

Question 69611: 12 is what percent of 240?
Please help on this
Click here to see answer by Earlsdon(6294)

Question 69633: The two points(30,-25) and (50,65) determine a line
Click here to see answer by checkley75(3666)

Question 69629: (-4,7); m=-5
Click here to see answer by checkley75(3666)

Question 69627: I am trying to find out how to find the slope of the line that contains
(9,5) and (9,9). I got this wrong on a text.
Thank you
Click here to see answer by checkley75(3666)

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