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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 249992: This says find the slope if it exists
x=-6
m=? it has to be an integer or simplified fraction
or undefined
Can someone help me with this?
Click here to see answer by tutorcecilia(2152)

Question 249978: Im no good at these word problems can someone help me?
The function H described by H(x)=2.75x+71.48 can be used to predict the height in centimeters, of a womans whos humerus is x cm long
Predict the height of a woman whos humerus is 33 cm long?
Any help is appreciated thanks.
Click here to see answer by oberobic(2304)

Question 249921: Write a system of two equations in two unknowns for each
problem. Solve each system by the method of your choice
Girls and boys. There are 385 surfers in Surf City. Twothirds
of the boys are surfers and one-twelfth of the girls
are surfers. If there are two girls for every boy, then how
many boys and how many girls are there in Surf City?
Can someone please help me solve this
Click here to see answer by ankor@dixie-net.com(15624)

Question 249951: Can someone please help me solve this
Exploration
a) Write a linear equation in two variables that is
satisfied by (3, 5).
b) Write another linear equation in two variables that is
satisfied by (3, 5).
c) Are your equations independent or dependent?
d) Explain how to select the second equation so that it will
be independent of the first.
Click here to see answer by oberobic(2304)

Question 250023: How do you graph the line y=-x+6?
Click here to see answer by oberobic(2304)

Question 250023: How do you graph the line y=-x+6?
Click here to see answer by actuary(112)

Question 249947: Write a system of two equations in two unknowns for each
problem. Solve each system by the method of your choice
Girls and boys. There are 385 surfers in Surf City. Twothirds
of the boys are surfers and one-twelfth of the girls
are surfers. If there are two girls for every boy, then how
many boys and how many girls are there in Surf City?
Can someone please help me solve this
Click here to see answer by oberobic(2304)

Question 250068: Use the substitution method to solve the linear system given. Express
the answer as an ordered pair of the form (x,y)
y = x + 2
3x + 2y = 9

Click here to see answer by actuary(112)

Question 249990: Wow I don't understand this it says in 1990, the life expectancy of males was 64.7 years. In 1995 it was 67.8 years, let E represent the life expectancy in year t and let t represent the number of years since 1990.
E(t)=?t+? and round to nearest tenth
Use the function to predict life expectancy in 2005
E(15)=? round to the nearest tenth
Thanks for any and all help
Click here to see answer by Theo(3458)

Question 250073: Is the ordered pair (0,5) a solution of the system of linear equations:
x + y = 5
-5x + 2y = 10

Click here to see answer by Theo(3458)

Question 250073: Is the ordered pair (0,5) a solution of the system of linear equations:
x + y = 5
-5x + 2y = 10

Click here to see answer by actuary(112)

Question 250097: This says to collect like terms and I'm totally lost can you all help?
12r+4s-6r-6s=?
Thank you
Click here to see answer by stanbon(57222)

Question 250097: This says to collect like terms and I'm totally lost can you all help?
12r+4s-6r-6s=?
Thank you
Click here to see answer by Edwin McCravy(8880)

Question 250095: Hi can someone help me solve this please?
-5<4x-4<-3
the solution is {x/? any help will be appreciated thanks
Click here to see answer by checkley77(12569)

Question 250095: Hi can someone help me solve this please?
-5<4x-4<-3
the solution is {x/? any help will be appreciated thanks
Click here to see answer by Edwin McCravy(8880)

Question 250102: I need to graph the equation y=4 can someone show me how to do this?
Click here to see answer by vleith(2825)

Question 250100: I need help please
it says to solve the following systemof equations
x+6y=4(1)
x=9-6y(2)
it say the solution is an ordered pair or there is no solution I just can't understand it thanks for your time
Click here to see answer by vleith(2825)

Question 250106: I am having difficulties answering these questions as I have found conflicting information. PLEASE HELP!!!
What similarities and differences do you see between functions and linear equations studied in Ch. 3?

Are all linear equations functions? Is there an instance when a linear equation is not a function? Support your answer.

Click here to see answer by stanbon(57222)

Question 250114: It s ay solve using the multipication principle and perform a check
-1/2x=-5/6
it also says the solution is a simplified fraction
Im not very good at fractions could you help me,anybody?
Click here to see answer by stanbon(57222)

Question 250040: x=-2
find the slope if it exists
Click here to see answer by Fombitz(13828)

Question 250059: I need to graph this equation using the slope and the y-intercept
y=8/3x+6
Can someone help me solve the graph this? Thanks so much
Click here to see answer by Fombitz(13828)

Question 250139: I need to graph this inequality on a plane
2x+3y<6
Can anyone help and does this have to be shaded?thanks
Click here to see answer by stanbon(57222)

Question 250091: Whoa I need help please?
The equation y=-1777x+27,153 can be used to predict the number y of gun death in the U.S. x years after 2000, that is x=0 corresponds to 2000, x=2 corresponds to 2002, x=4 corresponds to 2004 and so on, predict the number of gun deaths in 2004 and 2007. In what year will the number of gun deaths be 11,160?
2004 ?
2007 ?
and the number of gun deaths will be 11,160 in the year ?
I am totally lost. Thank you
Click here to see answer by Theo(3458)

Question 250134: 5r-7s=-28
7r+5s=94
solve by the elimination method
the solution it says is an ordered pair
Can anyone help please?
Click here to see answer by richwmiller(9135)

Question 250176: How many lines pass through the point (3,2) and is parallel to the line y=3x-5
Click here to see answer by richwmiller(9135)

Question 250177: how many lines pass through the point (1,4)
Click here to see answer by solver91311(16868)

Question 250242: I am having trouble with how to find the equation of the line.
Here is the problem:
Find the equation of the line parallel to 2x+4y=9 and passing through the point (6,-2).
If someone could walk me through the steps on how to find the answer i would really appreciate it i have a final in two days!
Click here to see answer by solver91311(16868)

Question 250247: find an equation of the line containing the given pair of points (3,5) and (9,6)
Click here to see answer by checkley77(12569)

Question 250247: find an equation of the line containing the given pair of points (3,5) and (9,6)
Click here to see answer by mathhub(11)

Question 250214: Please help me with the problem:write an equation of the line that passes through the points(2,3)and(4,5)
Click here to see answer by checkley77(12569)

Question 250208: Please help me solve this equation: Solve by finding the in slope-intercept form and standard form:
Through (2,-5) and (1,4)
Click here to see answer by checkley77(12569)

Question 250060: I need to solve this by the substitution method
5x+2y=-29
x=8-5y
it says the solution is a ordered pair
Can someome help me I'm totally confused. Thanks
Click here to see answer by ankor@dixie-net.com(15624)

Question 250337: Can someone help me solve this by the substitution method please?
5x+2y=-29
x=8-5y
the solution is a ordered pair but I keep coming up with different answers, thank you for all help
Click here to see answer by richwmiller(9135)

Question 250359: This says to solve by the elimination method
4x+5y=2
8x+10y=4
the solution is an ordered pair can someone please help me?
Click here to see answer by richwmiller(9135)

Question 250362: The width of a rectangle is fixed at 15 cm. What lengths will make the perimeter greater than 100 cm
the length must be greater than ? cm
Pleese help me, thanks so much
Click here to see answer by solver91311(16868)

Question 250368: Soybean meal is 16% protein, cornmeal is 8% protein. How many pounds of each should be mixed together in order to get 320-lb mixture that is 10% protein?
How many pounds of cornmeal?
How many pounds of soybean meal?
im not good at word problems can someone pleeese help me? thank you
Click here to see answer by fractalier(2101)

Question 250374: I need to solve this by elimination and get an ordered pair
5r-7s=-28
7r+5s=94
can someone please help me I cant get the right answer, thank you

Click here to see answer by fractalier(2101)

Question 250120: This problem says soybean meal is 16% protein, cornmeal is 8% protein. How many poundsof each should be mixed together in order to get 320-lb. mixture that is 10% protein.
How many pounds of cornmeal ?
How many pounds of soybean meal?
Im so totally lost please help. thanks
Click here to see answer by ankor@dixie-net.com(15624)

Question 250354: 0.4x+1<1.2x-2
can someone help me solve this? it must be in decimal form and must be simplified. Thank you so much
Click here to see answer by checkley77(12569)

Question 250408: Please help me answer this question. I need two equations, one for members and one for non-members.
To encourage customers a new theater is offering memberships. The membership costs $75.00 per year plus $2.00 per movie. For non-members, the cost of a movie is $5.75.
Click here to see answer by chosenpoint(26)

Question 250465: The parenthesis always confuses me can someone help me with this? Im not very good with fractions it says multiply
9/5 times(-7/5)
any help is appreciated thanks
Click here to see answer by rfer(12644)

Question 250485: How do I solve for "y?" 4x-2y=-18
Click here to see answer by MRperkins(300)

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11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 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