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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 233513: I need help solving a problem
3/4 (3x - 1/2) - 1/3 < 2/3
Click here to see answer by stanbon(57361)

Question 233514: I have a story problem
The representative tells you that floor plan #1 sells for $175,000 and floor plan #2 sells for $200,000 She also mentions that all the available houses combined are worth $7,200,000. Write an equation that eliminates the situation, using x an y as your variables.
Then uses elimination method to determine how many houses with each floor plan are available.
Thank you for your immediate response
Click here to see answer by stanbon(57361)

Question 233530: In a recent promotion, AT&T charged a monthly fee of $3.95 plus 7 cents for each minute of long distant phone calls. If x is the number of minuetes of long distant calls, find the slope-intercept equation for the monthly bill.
Click here to see answer by rapaljer(4667)

Question 233535: find an equation of the line that contains the point (1,0) and is perpendiular to 2x +=-4
Click here to see answer by rapaljer(4667)

Question 233546: for equation writh in slop-intercept form and give the slop of the line and give the intercept6x+5y=40
Click here to see answer by stanbon(57361)

Question 233540: Find an euation of the line with the given slope and y-intercept. (3.4a)
Slope= -2.8: y-intercept: (0,19)
Click here to see answer by rfer(12662)

Question 233547: graph the equation by deterining the x and the y. thank you -4x+y=-20
Click here to see answer by rapaljer(4667)

Question 233545: write equation,in slop-intercept from,(3,4)and(5,8)
Click here to see answer by eggsarecool(46)

Question 233537: graph the line containing the given pair of points and find the slope (3.3a)
(-5, -2), (5,4)
Click here to see answer by Alan3354(30993)

Question 233527: Find the equation of the line that goes through the given point and has the given slope. Write the answer in slope-intercept form
(-1, -5), -8

Click here to see answer by nerdybill(6962)

Question 233571: "4 linear equations in one variable."
problem:
0.08-0.03(21,000-x)=800

Click here to see answer by Alan3354(30993)

Question 233594: I need your help tutors!! I need to know if my solution is correct.The equations needs to be simplified:
x^5-6x^4-16x^3 / x^3-4x.
My answer is x^2(x-8)/x-2...Is this right.
Click here to see answer by Earlsdon(6287)

Question 233649: find the slope and y intercept
y=11
Click here to see answer by Alan3354(30993)

Question 233677: please graph y>-1
Click here to see answer by Theo(3464)

Question 233730: find the slope of the line 2x - 3y = 14
Click here to see answer by stanbon(57361)

Question 233734: PI need your help with this problem I am not sure how you would set it up. A recreation department plans to build a rectangular playground enclosed by 1000 meters of fence. If the length of the playground is 4 meters less than 3 times the width find the length and width of the playground. I think the best way to set it up is 1000=(2l-4+2wcubed)but not sure please help me.
Click here to see answer by rfer(12662)

Question 233877: 1)If the formula P = 0.5643Y - 1092.57 can be used to predict the average price of a theater ticket after 1945, for what years will the average theater ticket price be at least 50 dollars? (Y is the actual year.)
Click here to see answer by nerdybill(6962)

Question 233902: how do you solve this linear equation?
7n-8m=4-2m
Click here to see answer by Alan3354(30993)

Question 233909: find the slope of -2y-10+2x=0
Click here to see answer by rfer(12662)

Question 233949: I really need help writing an equation for the line that is paraelle to y= -3x; and that passes through the point (3,0)
Click here to see answer by scott8148(6628)

Question 234058: find the value of K such that the graph of 4k = k-3y has a y intercept of (0,-8)
Click here to see answer by nerdybill(6962)

Question 234078: How do I rewrite this equation in function notation?
4y = -7x -3
Click here to see answer by rfer(12662)

Question 234245: (2,-2), m=3
Write an equation of the line that passes through each point with the given slope.
Click here to see answer by nerdybill(6962)

Question 234261: what is the equation of the line slope -5/4 and y intercept 8 in the slope intercept form?
Click here to see answer by rfer(12662)

Question 234380: Translate the problem into a pair of linear equations in two variables.
A sum of money amounting to $3.80 consist of dimes and quarters. If there are 20 coins in all, how many are quarters?
Click here to see answer by checkley77(12569)

Question 234396: Translate the problem into a pair of linear equations in two variables.
A sum of money amounting to $3.80 consist of dimes and quarters. If there are 2o coins in all, how many quarters?
Click here to see answer by scott8148(6628)

Question 234531: Graph the equation using the slope and y intercept.
y=5/4x+6
so I think the slope is 5/4.
I think the y intercept is 6.
I need to know if these are correct and also how I graph it.
I think I plot the point (0,6) and then go down 5 and over 4 to plot a second point and then draw a line.
Click here to see answer by solver91311(16897)

Question 234567: how do you write an equation in slope-intercept form for a line that satisfies the following condition a slope of 2/5 and passes through (10, -20)
Click here to see answer by nyc_function(2733)

Question 234611: I need a anwser ive tried cant seem to get it right: Write an eqation to a line parellel to 2x-3y=48and goes through (12,-1)
Click here to see answer by Earlsdon(6287)

Question 234645: -3(4-x)+5x-2(x+1)
Click here to see answer by rfer(12662)

Question 234634: Amy paid $82.69 for shoes during a 30% off sale, What was the original price, round to the nearest cent.
Thank you Laurie
Click here to see answer by rfer(12662)

Question 234698: how do u write an equation of a line with(1/2) that goes through the point (4,10)
Click here to see answer by solver91311(16897)

Question 234716: Is this a function? X Y

0 0
1 1
2 8
3 27
4 64
Click here to see answer by solver91311(16897)

Question 234716: Is this a function? X Y

0 0
1 1
2 8
3 27
4 64
Click here to see answer by stanbon(57361)

Question 234737: -x+2y=7
Click here to see answer by checkley77(12569)

Question 234762: how do you graph y=1/3x-2
Click here to see answer by checkley77(12569)

Question 234818: write the slope-intercept form of the equation of each line
3x-2y= -16
Click here to see answer by Alan3354(30993)

Question 234886: a store can purchase t-shirts for $7 each. It has fixed costs of $2,500. Each t-shirt is sold for $18
1. how do i write a linear equation for both cost and revenue
2. determine the break even point.
I figure the cost is $7 and the profit is $11 so the break even point would be $2,500 divided by 11 - would that be right
sorry - this is just not clicking. THANKS!!!!!
Click here to see answer by stanbon(57361)

Question 234888: a hotdog stand can purchase hot dogs for $0.35 each and buns for $0.20 each. It has fixed costs of $50 and each hotdog sells for $1.
1. write a linear equation for cost and revenue
2. determine break even point
price $1.00 - cost $0.55 means a profit of $0.45 each
so I think you would take the fixed cost of $50 and divide it by the profit $.045 to come up with a break even point of 111 hotdogs???????
Thanks!!!
Click here to see answer by josmiceli(9686)

Question 234918: The teacher gave a worksheet that had several problems on it but two that we(myself,aunt,uncle & mom) can not figure out-we all spent quite a bit of time on it. The instructions said to add parentheses to make this statement true.
problem #1 -8+3-2+7 = -16
problem #2 -8+3-2+7 = -2
We are studying Linear Equations-Order of Operations & the Distributive Property.
I asked the teacher for the answers and he said he did not know the answers (i think he has aides correct our papers).
thank you for any help you can give us.
Click here to see answer by Earlsdon(6287)

Question 234915: Is there a difference between solving a system of equations by the algebraic method and the graphical method?
Click here to see answer by solver91311(16897)

Question 234971: graph 2x - y is greater than or equal to 4

Click here to see answer by nyc_function(2733)

Question 235030: Write the equation in slope-intercept form of the line that has a slope of 3 and contains the point (4, 9).
Click here to see answer by solver91311(16897)

Question 234635: Solve by the elimination method
7r-5s=2
5r+ 7s = 86
I really want to see how to solve this one step by step thank you
Laurie

Click here to see answer by ankor@dixie-net.com(15656)

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