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

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Question 144891: How do I solve? what line is parallel to 4x+2y=-3.
A)4x+3=2y+3
B)6x+3y=-3
C)1/4x+1/2y=1/3
D)2x+4y=6
Click here to see answer by Alan3354(30924)

Question 144881: Find the equation of the line containing the point (4,1) and having a slope of -1/3. How do I solve this?
Click here to see answer by ankor@dixie-net.com(15622)

Question 144886: How do I solve: simplify the equation with rational exponents
25 1/2 + 27 1/3
Click here to see answer by checkley77(12569)

Question 144989: two private airplanes travel toward each other from cities that are 780 miles apart at speds 190 mph and 200mph. they left at the same time in how many hours will they meet? solution__________
Click here to see answer by vleith(2825)

Question 145006: How do I set this up as an equation; i.e., x + 2y + z = $5000? Thank you.

An investor chooses to invest $5000 in the Global Equities, Money Market, and Social Choice accounts (shown below). She wants to put 5 times as much money in the Money Market account as in the Global Equities account. She assumes that she will be able to get a return equal to the 10-year average, and she wants the total return on her investment to be 7 percent.

How much money should she invest in each account? Round each percentage to the nearest whole-number.

Annuity Accounts 10-Year Average
Global Equities 6.96%
Money Market 4.25%
Social Choice 10.01%

Click here to see answer by stanbon(57203)

Question 145033: .60x+x=192 need help solving it
Click here to see answer by HyperBrain(694)

Question 145033: .60x+x=192 need help solving it
Click here to see answer by katya2(1)

Question 129871: Please help me solove this problem:
2X-1/3y=8
3X-1/2y=6
I'm not sure how to start this, do I need to get a common multiple to remove the fraction or can I use the substitution method? Or am I on the right tract if I do the following
3(2x-1/3y=8)
2(3x-1/2y=6)
6x-y=24
6x-y=12
-(6x-y=24)
6X-y=12

Click here to see answer by ankor@dixie-net.com(15622)

Question 145401: Do you mind checking two more please?

1) -3x + y = -4
x - y = 0
I got y = 2, x = 2 (2,2)

2) 2x - y = -6
-2x + 2y = 4
I got y = -2, x = -4 (-2, -4)
Click here to see answer by jim_thompson5910(28476)

Question 145421: x-y+1
2x+y=4
Click here to see answer by stanbon(57203)

Question 145455: how can we solve this in linear equation 5x-3=5+1/2y
Click here to see answer by stanbon(57203)

Question 145554: draw a pair of axes and locate each of the following points. label each point by writting the corresponding ordered pair beside the point.
Click here to see answer by solver91311(16868)

Question 145647: please help me with this problem Thanks
It said solve the linear equation using the substitution method

5x-2y=6
y=2x-3
Click here to see answer by stanbon(57203)

Question 145647: please help me with this problem Thanks
It said solve the linear equation using the substitution method

5x-2y=6
y=2x-3
Click here to see answer by Alan3354(30924)

Question 144726: 2x-5y+z=5
3x+3y-z=17
4x-3y+2z=17
Click here to see answer by Alan3354(30924)

Question 145663: Solve the ff. turn them to y form
1/3x=y+2
3x-2y+8=0
4x-10y=0
3/4x+2y=8
2/3y=-x/2-5/3x
1/2x+3/2x=2y+5-3y
Click here to see answer by checkley77(12569)

Question 145646: Please help me Form A logarithmic function and help me
Discuss the slope or rate of change
Click here to see answer by nabla(475)

Question 145803: how do I do 2-y^2=0
Click here to see answer by checkley77(12569)

Question 145815: Solve by the elimination method

0.05x+0.25y=11
0.15x+0.05y=12
Click here to see answer by jim_thompson5910(28476)

Question 145825: Solve the systems of equations by graphing. Then classify the system as consistent or inconsistent and the equations as dependent or independent
y=-x-9
5x-4y=-27
Click here to see answer by jim_thompson5910(28476)

Question 145828: Solve the systems of equations by graphing. Then classify the system as consistent or inconsistent and the equations as dependent or independent

3u+v=16
3u=v+26
Click here to see answer by jim_thompson5910(28476)

Question 145830: solve by the substitution method

3x-3y=3
8x+55=y
Click here to see answer by jim_thompson5910(28476)

Question 145832: Solve by the substitution mehtod

3x+5y=-11
-6x+y=44
Click here to see answer by jim_thompson5910(28476)

Question 145835: Solve by the elimination method

x+8y=54
-x+9y=48
Click here to see answer by jim_thompson5910(28476)

Question 145836: Solve by the elimination method

0.3x-0.2y=4
0.5x+0.3y=5
Click here to see answer by jim_thompson5910(28476)

Question 145837: Solve by the elimination method

4x-9y=14.5
7y-2x=-8.5
Click here to see answer by jim_thompson5910(28476)

Question 145838: Solve the system of equations by graphing. Then classify the system as consistent or inconsistent and the equations as dependent or independent.

x+y=7
x-y=-3
Click here to see answer by jim_thompson5910(28476)

Question 145840: Solve the system of equations by graphing. Then classify the system as consistent or inconsistent and the equations as dependent or independent,

x+y=6
x+y=-4
Click here to see answer by jim_thompson5910(28476)

Question 145841: Sole the system of equations by graphing. Then classify the system as consistent or inconsistent and the equations as dependent or independent

3x-y=26
3x+4y=-14
Click here to see answer by jim_thompson5910(28476)

Question 145945: Please help me Form A quadratic equation and help me Discuss the slope or rate of change

Click here to see answer by nabla(475)

Question 145942: Please help me Form A linear equation in two variables and help me Discuss the slope or rate of change

Click here to see answer by nabla(475)

Question 141879: I know that there is only one output for each input, but why?
Click here to see answer by nabla(475)

Question 145988: 4x+2y=1, 2x+3y=.70 solve for x and y
Click here to see answer by nerdybill(6948)

Question 146072: Solve by elimination
x+y=38
175000x+200000y=7200000
Click here to see answer by jim_thompson5910(28476)

Question 146106: please help me solve this equation:

Click here to see answer by vleith(2825)

Question 146101: please help me solve this equation:

Click here to see answer by checkley77(12569)

Question 146121: The probability that San Francisco plays in the next Super Bowl is nine times the probability that they do not play in the next super bowl. The probability that San Francisco plays in the next Super bowl plus the probability that they do not is 1. What is the probability that San Fran plays in the next Super Bowl?
Click here to see answer by josmiceli(9645)

Question 146120: Ziggy's Famous Yogurt blends regular yogurt that is 3% fat with it's no-fat yogurt to obtain low fat yogurt that is 1% fat. How many pounds of regular yogurt and how many pounds of no-fat yogurt should be mixed to obtain 60 pounds of low fat yogurt?
Click here to see answer by josmiceli(9645)

Question 146118: Solve system by substitution or addition
2y-X=3
x=3y-5
Click here to see answer by oscargut(891)

Question 146119: At Gwens garage sale, all books were one price, and all magazines were another. Harriet bought 4 books and 3 magazines for $1.45 and June bought 2 books and 5 magazines for $1.25 What was the price of a book and what was the price of a magazine?
Click here to see answer by oscargut(891)

Question 146114: Donna invested her $33,000 bonus and received a total of $970 in interest after 1 year. If part of her money returned 4% and the remainder 2.25% then how much did she invest at each rate?
Click here to see answer by ankor@dixie-net.com(15622)

Question 146116: Tickets for a concert were sold to adults for $3 and to students for $2. If the total receipt were $824 and twice as many adult tickets as student tickets were sold, then how many of each sold?
Click here to see answer by edjones(7569)

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