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Question 40766: 2x+y=0
x-2y=-10
Solve using the addition or substitution method
Click here to see answer by stanbon(57967)

Question 40814: Solve the system of equations using the substitution method.
If the answer is a unique solution, present it as an ordered pair: (x, y). If not, specify whether the answer is “no solution” or “infinitely many solutions.”
3x + y = 7
4x – y = 21

Click here to see answer by stanbon(57967)

Question 40813: Find the equation, in slope-intercept form, of the line that passes through the points (5,2) and (-7, 3).

Click here to see answer by stanbon(57967)

Question 40813: Find the equation, in slope-intercept form, of the line that passes through the points (5,2) and (-7, 3).

Click here to see answer by checkley71(8403)

Question 40581: How do i start this problem? m-(3/8)> (1/2)
Click here to see answer by fractalier(2101)

Question 40894: write the equation of the line
c-intercept 3, y intercept 3
Click here to see answer by checkley71(8403)

Question 40906: Find the slope and y-intercept for the line 2x-3y=8
Click here to see answer by Nate(3500)

Question 40906: Find the slope and y-intercept for the line 2x-3y=8
Click here to see answer by checkley71(8403)

Question 40895: through (8,-3)
perpendicular to -5x-3y=-31
Click here to see answer by Nate(3500)

Question 40911: i am trying to determine if my son and I solved the following equation correctly:
Questions: Find the slope of the line passing through (-5/4,2) and (1/4,7/2)
Click here to see answer by Nate(3500)

Question 40927: I have a couple of questions on Linear equation. A little bit of explanatiom will help. Thanks a lot.
1. How do I find all points on the y-axis that are 12 units from (5, -3)
2. How do I find the equation of a circle that has a diameter with an endpoint (2,3) and ( 4,11). Write the answer in standard form.
Click here to see answer by mbarugel(146)

Question 40917: We need assistance in solving the following equation
1. What is the slope of all lines perpendicular to 4y+9x-6?
2. what is the slope of all lines parallel to 2y-3x=5?
Click here to see answer by stanbon(57967)

Question 41008: width is 10 feet less than length. the perimeter is 100 feet. how do i find the area?
Click here to see answer by stanbon(57967)

Question 41044: Please help with this.
If you mix 8 liters of a 40% solution of acid with some 70% solutions to get a mixture that is a 50% solution. How much of the 70% solution would be used?
Click here to see answer by Nate(3500)

Question 41046: I COLLECTED 4 TIMES AS MUCH MONEY AS DERRICK. WE COLLECTED A TOTAL OF $3900 HOW MUCH DID EACH OF US COLLECT. THIS ONE REALLY PUTS ME IN A STUMP HOLE THANKS FOR ANY HELP. SINCERLY KEVIN
Click here to see answer by Nate(3500)

Question 41057: CHUCK INVESTED $14000 LAST YEAR. HE INVESTED 9% IN A SIMPLE INTEREST, AND THE REST OF IT AT A 10%. THEN MADE A TOTAL OF $1350 FROM INTEREST. HOW MUCH WOULD HAVE BEEN INESTED AT EACH RATE? WOULD ENJOY ANY HELP GIVEN. KEVIN
Click here to see answer by Nate(3500)

Question 41090:
Click here to see answer by psbhowmick(529)

Question 41107: Find the imaginary solutions to each equation.
3y^2+8=0

Click here to see answer by fractalier(2101)

Question 41089: FIVE liters of a 4% solution must be mixed with a 10% sloution to get a 6%solution. how many liters of the 10% are needed? thanks
Click here to see answer by fractalier(2101)

Question 41088: LINK HAS 42 COINS CONSISTING OF NICKELS AND DIMES. IF THE TOTAL VALUE IS $3.30, FIND THE NUMBER OF EACH COIN.THANKS IM LEARING
Click here to see answer by fractalier(2101)

Question 41086: two cars leave the same point traveling in opposite direction. the second car travels 10 mph fasterthan the first and after 3 hours they are 330 miles apart. how fast is each car traveling?thanks very much
Click here to see answer by fractalier(2101)

Question 41085: two cars leave the same point traveling in opposite direction. the second car travels 10 mph fasterthan the first and after 3 hours they are 330 miles apart. how fast is each car traveling?
Click here to see answer by fractalier(2101)

Question 41087: two cars leave the same point traveling in opposite direction. the second car travels 10 mph fasterthan the first and after 3 hours they are 330 miles apart. how fast is each car traveling?thanks very much
Click here to see answer by fractalier(2101)

Question 41189: Please help!! I am trying to find out how to do the following problem. Write a equation of the line having slope 5 and y intercept -4/5.
Click here to see answer by fractalier(2101)

Question 41187: Find the slope and the y-intercept of -2y -5x=8.
Click here to see answer by fractalier(2101)

Question 40995: Find the equation, in standard form, with all integer coefficients, of the line perpendicular to 3x-4y=9 and passing through (-2,-1)
Click here to see answer by zeynep(43)

Question 41320: I need help figuring 5x + 8 + 3x - x + 5 = 6x - 3
Click here to see answer by vidhyak(94)

Question 41324: I need help figuring 2x + 3y = 6 (for x)
Click here to see answer by psbhowmick(529)

Question 41378: How do you write an equation in slope-intercept form when given the x and y-intercepts?
Example:
x-intercept 3, y-intercept 2
Click here to see answer by venugopalramana(3286)

Question 41379: How do you write an equation in slope-intercept form when given the x and y-intercepts?
Example:
x-intercept 3, y-intercept 2
Click here to see answer by venugopalramana(3286)

Question 41453: Having trouble understanding Slopes and graphs portion of my Algebra class. please help.
The problem is
Determine which two equations represent parallel lines.
(a) y = 6x – 10 (b) y = –6x + 10 (c) y = 6x + 5 (d) y = x – 10
Thnks you
Click here to see answer by venugopalramana(3286)

Question 41500: what graph do you use to express the Y and x axis cordinates which are
x = -2,-1,0, 1, 2, and y = .25, .5, 1, 2, 4
Click here to see answer by stanbon(57967)

Question 41454: Having trouble This Problem in my Algabra class.
The problem is
Which of the ordered pairs
(–1, 2), (7, 0), (3, –1), (–17, 6)
are solutions for the equation x + 4y = 7?

Thnks you
Click here to see answer by Nate(3500)

Question 41518: my question is I need to write the equation for the line satisfying the given information, then write it in slope-intercept form. Graph the equation, and show both of the intercepts.
Passes through the points (10,42.3)(20,51.5)
Passes through through the points(100,2.2)(150,1.9)
passes through the poins(1/2,-1/2) with slope 1/2
passes through the points(-10.4,0.3)(5,34,000)
Click here to see answer by psbhowmick(529)

Question 41581: For f(x) = 3x – 5, find f(2).
Click here to see answer by stanbon(57967)

Question 41591: it say to use the substitutuon

y=x+2
2x+y=8

x+y=3
3x+y=3

3x-y=9
2x+y=6

I hope you ca help I need to know how to do this for my examine
Click here to see answer by Nate(3500)

Question 41593: please help it say use the substitution method to solve the linear system
x+2y=-5
4x-3y=2

32-2y=4
x+ 3y=5

3x+y= -2
x+3y=2
Click here to see answer by checkley71(8403)

Question 41549: Determine whether -4 satisfies each compound inequality
-3x > 0 and 3x - 4 < 11

Graph the solution set to each compound inequality.
x > -2 and x is less than or equal to 4

x > 3 or x < -3

Solve each compound inequality. Write the solution set in interval notation and graph it.
-1 is less than or equal to 3 - 2x < 11

Solve each problem by using a compound inequality.

Two tests only. Professor Davis counts his midterm as 2/3 of the grade, and his final as 1/3 of the grade. jason scored only 64 on the midterm. What range of scores on the final exam would put Jason's average between 70 and 79 inclusive?

Senior citizens. The number of senior citizens (65 and over) in the United States in millions n years after 1990 can be estimated by using the formula s - 0.38n + 31.2. The percentage of senior citizens living below the poverty level n years after 1990 can be estimated by using the formula p = -0.25n + 12.2.
a) how many senior citizens were ther in 2000?
b) In what year will the percentage of seniors living below the poverty level reach 7%?
c) What is the first year in which we can expect both the number of seniors to be greater than 40 million and fewer than 7% living below the poverty level?
Click here to see answer by stanbon(57967)

Question 41609: it tell you to use the substitution method to solve the linear system
x +2y = - 5
4x-3y=2

3x-2y=4
x+3y=5

3x+y= -2
x+3y=2
Click here to see answer by K N Swamy(1)

Question 41789: please help me solve this equation...
(5x+2y=10)

thank you
Click here to see answer by longjonsilver(2297)

Question 41789: please help me solve this equation...
(5x+2y=10)

thank you
Click here to see answer by psbhowmick(529)

Question 41781: I HOPE YOU CAN HELP
USE THE SUBSTITUTION METHOD TO SOLVE THE LINEAR SYSTEM
1. X + 2 = -5
4x -3y = 2

2. 3x - 2y =4
x + 3y = 5

3. 3x + y = -2
x + 3y = 2
Click here to see answer by tutorcecilia(2152)

Question 41845: Convert to scientific notation:
0.003816

Click here to see answer by checkley71(8403)

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