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

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Tutors Answer Your Questions about Linear-systems (FREE)


Question 316769: Could someone help me with this problem? I am confused?

Bayside Insurance offers two health plans. Under Plan A, Sam would have to pay the first $80 of his medical bills, plus 35% of the rest. Under Plan B, Sam would pay the first $230, but only 20% of the rest. For what amount of medical bills will Plan B save Sam money? Assume he was over $230 in bills. Sam would save with Plan B if he had more than $_____ in bills.

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Question 316845: (45x-60X)(67x+23x)+(90-67x)
solve this sum for me

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Question 316962: Nicky said, "you'll never guess my numbers! Their sum is 12 their diffence is 26." Are there such two numbers? if so what are they."
Variables:
Equation:
Answer:

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Question 316964: A 96 inch board is cut into two pieces, one piece is 8 inches longer than the other. how long should each piece be?
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Question 316991: Toni said "i bet you cant guess my numbers! the first is five more than the second. if you add the first to three times the second you get 29." what are toni's numbers?
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Question 316957: "the halks still have a narrow edge over the pioneers in this basketball game. they're leading 51 to 49. the pioneers have scored 30 times,the halks 29. so far neither team has made ant three point baskets."
How many two-point baskets and how many free throws have the pioneers made?
Variables:
Equation:
Answer:

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Question 317072: Solve the system of equations and enter the solution as an ordered pair.
2x-5y=-6
8x+3y=68

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Question 317271: Solve the following system of equations using the inverse matrix method.
x+3y=6
x-2z=-1
3y+z=5
x=
y=
z=

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Question 317273: Solve the following system of equations.
3x+5y=-11
x-2y=11
(x,y)=?

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Question 317344: Please Help. I believe that A+B ARE DONE , BUT C IS GIVING ME A PROBLEM. i HAVE WORKED THIS PROBLEM SEVERAL TIMES AND CAN'T FIGURE IT OUT??

Scenario #1: You handle internal accounting for Triad Homes, a land/housing developer. The company purchased land in South Florida and developed 250 acres. Two orders were recently placed with a nursery by the company’s landscapers. The invoices from the orders do not list the per-item price.
a) After contacting the Nursery, they inform you that the first order that was placed was for 12 Indian Hawthorn bushes and 5 Maple trees at a cost of $300.00. Use x to represent bushes and y to represent the trees. Write an equation that illustrates the situation.
12X+5Y=300 <--- IS THIS CORRECT????
b) The Nursery later indicates that the second order called for 6 Indian Hawthorn bushes and 8 Maple trees at a cost of $315.00. Write an equation that illustrates this situation using the same variables you used in part a.
6X+8Y=315 <----- IS THIS CORRECT?
c) Use the equations from parts a and b as a system of equations. Use elimination to determine the cost of each. Describe the steps you used to solve the problem

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Question 317583: How do I write 8x+83=y in y=mx+b form ?
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Question 317725: Solve each system, if possible.. Please show all steps
3x+y+z=0
2x-y+z=0
2x+y+z=0

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Question 317903: Solve the system by the sustitution method: 3x - 2y = 0
5x + 10y =4

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Question 318028: 3x-4y=24
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Question 318043: find an equation of the line through (2,8) and parallel y=2x+7
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Question 318063: Terry did all 25 problems on the test and got an 85. Scores are computed by giving 4 points for each right answer and subtracting 1 point for each wrong answer. How many problems did terry get right and wrong?

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Question 318042: solve with the elimination method
3x-6y=4
3x-6y=5
The solution is an ordered pair;

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Question 318336: Solve the following system of equations. Please show your work to receive full credit.
x - y = 16
2x + y = 2
Part 2:
Explain which method you chose to solve the system and why you felt it was the best choice.

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Question 318411: Carmen is 6 years older than mike. In two years Carmen will be twice as old as mike. What are their ages?
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Question 318610: 14x - 2y = 78
2x - 2y = 6

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Question 318720: x-y=2
x+y=6

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Question 318870: A car is traveling on a highway at 70 miles per hour. The distance in miles from it's destination is 385 miles.
a) Does the relation between the number of miles from the car's destination and the time in hours traveled represent a linear function? I answered "yes"
b) If so, what are the input/output variables?
input ____________ output _____________

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Question 318981: How much money does Brad earn for a 4-hour shift?
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Question 318969: Explain whether the equation 3(x – 1) + 5 = 15x + 7 – 4 – 4(3x +1) + 3 has infinitely many
solutions, one solution, or no solutions?

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Question 318971: step by step please
0.7-0.4=0.16

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Question 319071: VIJAY IS OLDER THAN HIS SISTER SEEMA BY TWO YEARS.FOUR YEARS AGO VIJAY WAS FOUR TIMES AS HIS SISTER. FIND THIER AGES?
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Question 318064: How could you cut a 50-meter rope into three pieces- two the same length and the third, 8 meters longer then the other two?
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Question 319279: x-y=4
x+y=2

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Question 319557: Using the elimination method, how would you solve the following
5x+5y=13
7x-2y=17

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Question 319559: Solve the system of equations:
x + 2y = 3
4x + 5y = 6

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Question 319559: Solve the system of equations:
x + 2y = 3
4x + 5y = 6

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Question 319567: solve each system of equations algebraically
5x-2y=20
2x+3y=27

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Question 319644: Solve by the substitution method
7x+5y=-51
x=-2-6y
answer is no solution.......Is this correct?

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Question 319708: 2(x-4)<3x+8
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Question 319710: 2x-4y=6 and 4x+y=21 work addition method and is it independent, inconsistent or dependent.
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Question 319716: y=2x-5 and y+1=2(x-2)addition method and is it independent, dependent or inconsistent.
x+y=4 and x-y=5 addition method is it independent, dependent or inconsistent.

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Question 319716: y=2x-5 and y+1=2(x-2)addition method and is it independent, dependent or inconsistent.
x+y=4 and x-y=5 addition method is it independent, dependent or inconsistent.

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Question 319798: What similarities and differences do you see between functions and linear equations? Are all linear equations functions? Is there an instance in which a linear equation is not a function?
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Question 319799: How do you create an equation of a nonlinear function with two inputs?
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Question 319835: Given the linear equation:
- Find the missing coordinates of the given points. Show your work.
- Plot those points and graph the linear equation. Submit your graph through the dropbox.

3x - 8y = 24

(0, ), ( ,0)

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Question 319830: Given the linear equation:
- Find the y-coordinates of the given points. Show your work.
- Plot those points and graph the linear equation. Submit your graph through the dropbox.

y = x + 3

(0, ), (2, ), (-2, )

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Question 319832: Given the linear equation:
- Find the missing coordinates of the given points. Show your work.
- Plot those points and graph the linear equation. Submit your graph through the dropbox.

2x + 5y = 10

(0, ), ( ,0)

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Question 319929: 4x-4y=12 simplified?
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Question 319928: 4x-4y=12 simplified?
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Question 320080: y-3x=a
3x-y=2
what is a to make these equation a dependent system of linear equation

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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890