Tutors Answer Your Questions about Linear-equations (FREE)
Question 178535: Tickets to a concert cost $25 for lower-level seats and $10 for upper-level seats.
A company plans to buy up to 30 tickets for employees and spend up to $500. Write
and graph a system of linear inequalities to represent all the possible combinations of lower-level and upper-level tickets the company can buy.
I got: x + y is less than or equal to 30
25x + 10y is less than or equal to 500
my problem: I don't know where to go from here to graph.
PLEASE HELP!
Click here to see answer by stanbon(57246) |
Question 178444: please help me with this solution. I am not getting the right answer.
John plans a road trip from Chicago to Detroit in his Toyota with an overnight stay in Hammond,Indiana. On Wednesday, he drove from Chicago to Hammond to Detroit at an average speed of 69 mph. His driving time on Thursday is 2 hours longer than his driving time on Wednesday. If the total distance from Chicago to Detroit is 326 miles, then what is the total number of hours he drove on both days? How far is Detroit from Hammond?
Thank you.
Click here to see answer by Mathtut(3670) |
Question 178552: Write a system of two equations in two unknowns for each problem. Solve each system by the metheod of your choice.
Ziggy's Famous Yogurt blends regular yogurt that is 3% fat with its no-fat yogurt to obtain lowfat 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 Mathtut(3670) |
Question 178591: help! i dont understand this problem...i know what real and imaginary numbers are but this one really confused me! thanks!
Find the real and imaginary parts of the complex number.
-8/9 i
1 ___ (real part)
2 ___(imaginary part)
Click here to see answer by cartert(27) |
Question 178591: help! i dont understand this problem...i know what real and imaginary numbers are but this one really confused me! thanks!
Find the real and imaginary parts of the complex number.
-8/9 i
1 ___ (real part)
2 ___(imaginary part)
Click here to see answer by Mathtut(3670) |
Question 178591: help! i dont understand this problem...i know what real and imaginary numbers are but this one really confused me! thanks!
Find the real and imaginary parts of the complex number.
-8/9 i
1 ___ (real part)
2 ___(imaginary part)
Click here to see answer by Fombitz(13828)  |
Question 178638: What similarities and differences do you see between functions and linear equations. Are all linear equations functions? Is there an instance when a linear equation is not a function. Create an equation of a nonlinear function and provide two inputs for examples.
Click here to see answer by Mathtut(3670) |
Question 178646: This question concerns using the slope intercept form.
The problem is this,
write an equation of the line that has the given slope and passes through the given point.
m= -5, (-3,6)
how do i do this problem and please explain how to do it in slope intercept form
Click here to see answer by scott8148(6628)  |
Question 178688: I tried solving this system, I am not getting it.
Using the addition method, solve then state if it is independent, inconsistent, dependent. show steps so I can see what I did wrong.
-3x + y =3
2x - 3y =5
and
5x - 3y = -20
3x + 2y = 7
Click here to see answer by stanbon(57246) |
Question 178689: Determine whether each system of linear equations has (a) one and only one solution, (b) infinitely many solutions, or (c) not solution. Find all solutions whenever they exist.
1.) x - 3y = -1
4x + 3y = 11
Click here to see answer by stanbon(57246) |
Question 178696: i hate word problems.
A restaurant purchased eight tablecloths and five napkins for $106. A week later, a tablecloth and six napkins were brought for $ 24. Find the cost of one tablecloth and one napkin; assuming the same prices for both purchases.
This is what I started.
8t + 5n = 106
t + 6n = 24
mulyiply both sides by ( -8)
8t + 5n + 106
-8t - 48n = -192
-43n = 86
n = -2
I don' t think this is right.
Click here to see answer by Mathtut(3670) |
Question 178696: i hate word problems.
A restaurant purchased eight tablecloths and five napkins for $106. A week later, a tablecloth and six napkins were brought for $ 24. Find the cost of one tablecloth and one napkin; assuming the same prices for both purchases.
This is what I started.
8t + 5n = 106
t + 6n = 24
mulyiply both sides by ( -8)
8t + 5n + 106
-8t - 48n = -192
-43n = 86
n = -2
I don' t think this is right.
Click here to see answer by HyperBrain(694) |
Question 178732: What similarities and differences do you see between functions and linear equations? Are all linear equations functions? Is there an instance when a linear equation is not a function. Create an equation of a nonlinear function and provide two inputs.
Click here to see answer by Mathtut(3670) |
Question 178784: How to solve C= 2.85n + 30.52 to a) Find and interpret the C-intercept for the line?
b) Find and interpret the n-intercept for the line?
c) Graph the line for n ranging from 0 through 20?
Can you please offer me some helpful information on how to solve equations such as these?
Thank you,
kelloggdmk
Click here to see answer by Mathtut(3670) |
Question 178967: Find the slope and y-intercept and graph the following linear equation.
y=-4x+1 I have the graph for this problem, but I need to know the steps it took to get the slope and y-intercept. Can you please explain each step. Thank you
Click here to see answer by Mathtut(3670) |
Question 178977: A line has a slope of 7. Use the slope formula to find the missing coordinate
(x,8) (4,1)
x=5 but when I try to use the slope formula I am making a mistake somewhere. Please explain the steps you took to solve this problem.
Click here to see answer by stanbon(57246) |
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