Questions on Algebra: Systems of Linear Equations answered by real tutors!

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Question 956163: 3x+2y=8
2x+y=5
Click here to see answer by stanbon(75887)

Question 956163: 3x+2y=8
2x+y=5
Click here to see answer by Zucchini(70)

Question 956286: The length of one rectangular field is 400m more that the side of a square fields. The width is 100 m more than the side of the square field. If the rectangular field has twice the area square field, what the dimensions of each field?
Click here to see answer by lwsshak3(11628)

Question 956293: The width of a rectangular TV screen is 5.7 in. more than the height. If the diagonal is 27.0 in., find the dimensions of the screen.
Click here to see answer by amarjeeth123(569)

Question 956545: como yo puedo obtener la grafica de y=-3x

Click here to see answer by macston(5194)

Question 956889: Write an equation in Standard Form such that it represents with slope -8/3 and it passes (1/2,-3)
Click here to see answer by lwsshak3(11628)

Question 956909: k2(m-a) divided by x = x
solve "a"
Click here to see answer by stanbon(75887)

Question 956928: what is
24x-10x=112
Click here to see answer by checkley77(12844)

Question 957004: 3x-8y=-21 x=2-1/3y

Click here to see answer by macston(5194)

Question 957026: write the following in standard form (Ax + By= C) a horizontal line through (6,-5) find the equation.
Click here to see answer by Fombitz(32388)

Question 957243: http://www.usatestprep.com/modules/gallery/files/117/11762/11762.png
Determine a solution for the linear inequality graphed here.

A)
(3, 0)
B)
(3, -1)
C)
(0, 0)
D)
(5, 2)

Question 2
Solve and graph the compound inequality.
5x - 5>10 or -3x + 1>13
They should both be greater than/equal to signs
Click here to see answer by MathLover1(20850)

Question 957419: Solving for x and y, what are the variables in the following equations solving systems of equations?
4x+y=32
−3x−y=−26
Click here to see answer by macston(5194)

Question 957843: Which of the following best describes the equation below?
y = 7x + 13
Click here to see answer by Alan3354(69443)

Question 957880: using subsition what is the answer to y=x+2 and y=x^2+2????????
Click here to see answer by Alan3354(69443)

Question 957986: A spring streches to 22 cm with a 75 g weight attached to the end. with a 105g weight attached, it streches to 28 cm. if the spring is streches to 34 cm,
what is the weight x attached to it? round to the nearest whole gram
Click here to see answer by Alan3354(69443)

Question 958021: Explain why the equation 10x-1=10x+4 has no solution??
Click here to see answer by josgarithmetic(39617)

Question 958040: Is 12, 13 or 14 a solution to the inequality 4x > 52?
Click here to see answer by MathLover1(20850)

Question 957936: x-6y=31
7y-8x=2
whatn is oordered pair
Click here to see answer by stanbon(75887)

Question 958102: The system of linear equations below has a unique solution for all but one value of a :
10 x - 20 y = 50
26 x + a y = 130
What is this exceptional value for a ?
Click here to see answer by macston(5194)

Question 958066: write the equation of a line in standard form such that it passes point (-2,5) and the line is parallel to another line with equation 2x=-2/5y-2/3
Click here to see answer by Fombitz(32388)

Question 958132: Graph the system of linear inequalities:
{(x,y)| x+y< (line under it) 2, x> -3, x ∈ R, y ∈ R}
Click here to see answer by Fombitz(32388)

Question 958312: x=5 and y=-1
Click here to see answer by Alan3354(69443)

Question 958310: x-y=1 and x+2y=10
Click here to see answer by Alan3354(69443)

Question 958309: x-y=1 and x+2y=10
Click here to see answer by macston(5194)

Question 958507: Pi High school ordered 40 science books. The next week, the school ordered 30 algebra books. The bill for the first order was $360 greater than the bill for the second order. The two bills together totaled $3960. Find the price of the algebra book.
Click here to see answer by macston(5194)

Question 958506: Kevin flew his ultralight plane to a landing field 24 miles away. With the wind, the flight took 2/5 hour. Returning against the wind, the flight took 3/4 hour. Find the rate of plane in still air and the rate of the wind.
Click here to see answer by Alan3354(69443)

Question 958747: An adult pass for a carnival costs $5 more than a children's pass. When 410 adult and 562 children's passes were sold, the total revenue was $6424. Find the cost of an adult pass.
Click here to see answer by macston(5194)

Question 958775: which of these points lies on the line described by the equation below? y-8=3(x+6)

Click here to see answer by Alan3354(69443)

Question 959084: Please help me solve this question
Click here to see answer by Fombitz(32388)

Question 959083: Solve the linear programming problem by the method of corners.
Minimize C = 4x + 3y
subject to x + y ≤ 48
x + 3y ≥ 60
9x + 5y ≤ 320
x ≥ 10, y ≥ 0
What is the minimum C? What is the point (X,Y)?
Click here to see answer by Theo(13342)

Question 959393: The sum of two numbers is 119. One number is 14 more than half another number. Find the numbers.
Click here to see answer by checkley77(12844)

Question 959736: 11y/(2y+2x-y)
Click here to see answer by addingup(3677)

Question 959777:
Click here to see answer by Fombitz(32388)

Question 959711: There are 26 students in your class, there are 4 more girls than boys.use a system of linear equations to find how many boys are in the class. How many girls are in your class
Click here to see answer by Fombitz(32388)

Question 959987: Solve the following system by substitution.
9x-y=10
y=-9x+6
Could you send the solution? Thanks.
Click here to see answer by stanbon(75887)

Question 959986: Solve the following system of linear equations by the elimination method.
4x+3y=-1
8x+6y=0
Could you send the solution? Thanks.
Click here to see answer by stanbon(75887)

Question 960049: A florist has two arrangements offered at special prices. The first Arrangement consists of 5 lilies and 1 rose and costs $19.75. The second arrangement consists of 6 lilies and 3 roses and costs $27.75. What are the costs of each lily and each rose?

Click here to see answer by stanbon(75887)

Question 960084: -2(2x-1)>-9
Click here to see answer by josgarithmetic(39617)

Question 960084: -2(2x-1)>-9
Click here to see answer by MathTherapy(10552)

Question 960180: Solve the linear equation using equivalent equations to isolate the variable. Express your solution as an integer, as a simplified fraction, or as a decimal number.
11x − 10x + 4 = −21
Click here to see answer by macston(5194)

Question 960312: Trying to solve by substitution but to no avail. Can you help me figure this out?
y=5/6x-3
y=3x-7/2
Click here to see answer by macston(5194)

Question 960299: HELP!! I am getting stumped. Trying to solve by substitution but am having a hard time.
y=5/6x+3
y=3x-7/2
please help me.
Click here to see answer by josgarithmetic(39617)

Question 960591: 2y-3x=12
y+1=5x
What is the solution to this using substitution? Also, what is the answer in an x,y point?
Click here to see answer by MathLover1(20850)

Question 960953: I think this is the right subject to place this in? I'm trying to figure how to set it up to solve, and solve, of course! can you please help me?
You are preparing a meal for some dinner guests. The meal will consist of
chicken breast, mashed potatoes, and carrots. A serving of chicken
contains 140 Cal, 27g of protein, and 64mg of sodium. A serving of
mashed potatoes contains 160 Cal, 4g of protein, and 636mg of sodium. A
serving of carrots contains 125 Cal, 8g of protein, and 139mg of sodium. If
the meal is to contain a total of 415 Cal, 50.5g of protein, and 553mg of
sodium then how many servings of each do you need to use?
Click here to see answer by ankor@dixie-net.com(22740)

Question 961631: After a sale the price of a stereo was marked up $35 to a regular price of $310. What was the sale price ?

Click here to see answer by josmiceli(19441)

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