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

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Question 643762: given the slope of the line segment and the other point, determine the unknown
(7,12), (12,d), slope 6
Click here to see answer by stanbon(75887)

Question 643878: write slop intercept form
Click here to see answer by MathLover1(20849)

Question 644067: The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May her driving cost was $350 for 420 mi and in June her cost was $470 for 900 mi. Assume that there is a linear relationship between the monthly cost C of driving a car and the distance driven d.
(a) Find a linear equation that relates C and d.
Click here to see answer by josmiceli(19441)

Question 644029: write the standart equation the line that passes through (3, -7) and is perpendicular to the line with equation y=3x-5
Click here to see answer by MathLover1(20849)

Question 644146: one pipe can fill a pool 1.25 times faster than a second pipe . When both pipes are opened , they fill the pool in five hours . How long would it take to fill the pool if only the slower pipe is used ? tanx

Click here to see answer by DrBeeee(684)

Question 644197: A second rental company trusty car rentals charges $25 daily to rent a compact car plus a mileage rate of 0.47 per mile?
Click here to see answer by stanbon(75887)

Question 644216: Find an equation of the line satisfying the given conditions:
1.(a)Through the point (1,-7) and parallel to the x-axis;
(b)through the point (2,6)and parallel to the y axis.
Click here to see answer by Alan3354(69443)

Question 644211: Find an equation of the line satisfying the given conditions:
10. (a)The slope is -2 and through the point (-4,3);
(b)through the two points (3,1) and (-5,4)
Click here to see answer by unlockmath(1688)

Question 644241: A chemist has two acid solutions. One contains 15 percent acid and the other contains 6 percent acid. How many cubic centimeters of each solution should be used to obtain 400cm3 of a solution that is 9 percent acid?
Click here to see answer by stanbon(75887)

Question 644246: If a girl works for 8 min. and her brother works for 15 min, they can wash the front windows of their house. Also, if the girl works for 12 min and her brother works for 10 min, they can wash the same windows. How long will it take each person alone to wash the windows? (Hint: If it takes t minutes for a person to do a job alone, then in 1 min, the person can do 1/t of the job).
Click here to see answer by stanbon(75887)

Question 644217: Find the Slope and y intercept of the line having the given equation, and draw a sketch of the line.
1. (a)7x-8y=0; (b)x=6-2y
Click here to see answer by lynnlo(4176)

Question 644239: A group of women decided to contribute equal amounts toward obtaining a speaker for a book review. If there were 10 more women, each would have paid $2 less. However, if there were 5 less women, each would have paid $2 more. How many women were in the group and how much was the speaker paid?
Click here to see answer by DrBeeee(684)

Question 644321: 3(x-2)+7=2(x+5)
Click here to see answer by jim_thompson5910(35256)

Question 644361: I am not sure if this is the correct category. But please help me solve this.
This is the question: Graph the equation using the most appropriate method. Be sure to include key points.
F(x)=
I'm not really sure how to get the points from this equation.
Click here to see answer by stanbon(75887)

Question 644452: in 1980, the median family income was 18,000 and in 2000 it was 41,000 I need to know what the m= and what would be the median family income 2002
Click here to see answer by stanbon(75887)

Question 644451: x/(x^2-9)+4/(x+3)=3/(x^2-9)
Click here to see answer by stanbon(75887)

Question 644450: the distance between 2 stations is 300 km.Two motorcyclists start simultaneously from these stations and move towards each other.The speed of one of them is 7 km/h more than that of the other.If the distance between them after 2 hours of their start is 34 km, find the speed of each motorcyclists.

Click here to see answer by stanbon(75887)

Question 644475: a ski slope drops 30 feet for every horizontal 70 feet. Find the slope.
Click here to see answer by Alan3354(69443)

Question 644554: find the slope of a line parallel to 2x+5y=3

Click here to see answer by jim_thompson5910(35256)

Question 644600: Find the distance between the points (-2,3) and (1,-1).
Click here to see answer by jim_thompson5910(35256)

Question 644605: y=-4x-2
Click here to see answer by jim_thompson5910(35256)

Question 644748: Find an equation of the line that satisfies the given conditions.
Slope 5/3; y-intercept 6
Click here to see answer by jim_thompson5910(35256)

Question 644752: A barrel contains 173 gallons of paint and is being drained at a constant rate of 6 gallons per hour. write an equation that models the number of gallons, G, after T hours
Click here to see answer by colliefan(242)

Question 644833: Find he slope-intercept form of the equation of the line that passes through the points
(-1, 4), (6, 4)
Click here to see answer by Alan3354(69443)

Question 644933: what is slope=3/4 and y-intercept=-2 in slop intercept form?

Click here to see answer by jim_thompson5910(35256)

Question 644941: x+y=5
x+y=6
Solving linear equations by graphing
Click here to see answer by Aaniya(63)

Question 645085: Through (4, 5); perpendicular to the line
y = 5
Click here to see answer by nerdybill(7384)

Question 645085: Through (4, 5); perpendicular to the line
y = 5
Click here to see answer by stanbon(75887)

Question 645134: A gear on a machine turns at a rate of 2 revolutions per second. Let x= time in seconds and y=number of revolutions. what is the equation that models the number of revolutions over time? Graph this equation.
Click here to see answer by stanbon(75887)

Question 645472: what is the slope-intercept form of
Slope = 1, y-intercept = 1
Click here to see answer by jim_thompson5910(35256)

Question 645859: Express the given quantity in terms of the indicated variable.
The sum of seven consecutive integers; n = first integer of the seven
Click here to see answer by solver91311(24713)

Question 645866: what is the value of x in this linear equation
7+2(3-8x)=4-6(1+5x)
Click here to see answer by solver91311(24713)

Question 645934: sketch a graph of y=f(x)
f(x)=-4x+2

Click here to see answer by jim_thompson5910(35256)

Question 645955: 5x + 2y -6 = 0
using above equation, write in slope/intercept form.
find the slope of the corresponding line.
find the y-intercept of the corresponding line.
Click here to see answer by solver91311(24713)

Question 646057: Please help me understand how you would reduce these fractions to get an answer of 7/12x=3/14

Click here to see answer by Alan3354(69443)

Question 646114: what equation is parallel to y=7/3x-2
Click here to see answer by sachi(548)

Question 646152: how to find the x and y intercept of the equation
4x-8y = 10
Click here to see answer by MathLover1(20849)

Question 646400: Please help me with this problem on one-step equations. Eight workers a hired to weed a field by hand.Each is given a plot which is 5x7 feet in size. What is the total area of the field? I tried mulitplying 5 by 7 and getting 35 and then trying to divide that by 8 like this:x*8= 35 But i don't know for sure if that is right. Thank you
Click here to see answer by solver91311(24713)

Question 646412: How do you find the function of a sloped line?
Click here to see answer by solver91311(24713)

Question 645950: how do i find the equation of the line that passes through points (3,1), (0,3), (-2,k) and how do i find its value of k?
Click here to see answer by ankor@dixie-net.com(22740)

Question 646617: I need to graph the system of constraints and find the value of x and y that maximize the objective function: C=7x-37
x and y >= 0
y<=(1/5)x + 2
5<=y+x

I am not sure what parts of the graph overlap. I only come up with the intersection point (2.5, 2.5) but no other coordinates. Thanks
Click here to see answer by solver91311(24713)

Question 646777: If the line passing through the points (1, a) and (4, -2) is parallel to the line passing through the points (2, 8) and (-7, a + 4), what is the value of a?

Thanks for your help.
Click here to see answer by ewatrrr(24785)

Question 646969: Solve by substitution or elimination
2x-3y=8
-4x+5y=-10
i got the answer (-1,-6) but I'm not sure if it's correct it would be much appreciated if you did the elimination method, thank you.
Click here to see answer by MathLover1(20849)

Question 647332: 1/3(m-6) + 1/2(m+5)=5/3
Click here to see answer by ewatrrr(24785)

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