Tutors Answer Your Questions about Linear Algebra (FREE)
Question 1047510: To help sell more of a lower grade meat, a butcher mixes some premium ground beef worth $3.10/LB with 8LB of lower grade ground beef worth $2.05/LB.if the result was an intermediate grade of ground beef for the $2.68/LB. How much premium ground beef was used?
Click here to see answer by stanbon(75887)  |
Question 1047631: I do not understand this:
Solve the following system of equations:
2x+3y-x=0
X-2y-4z=14
3x+y-8z=17
This is all one problem.I'm having trouble and need some guidance if you could please to make this a little more simple for me to understand. Thank you so much for you time and help.
Click here to see answer by ikleyn(52781)  |
Question 1047631: I do not understand this:
Solve the following system of equations:
2x+3y-x=0
X-2y-4z=14
3x+y-8z=17
This is all one problem.I'm having trouble and need some guidance if you could please to make this a little more simple for me to understand. Thank you so much for you time and help.
Click here to see answer by stanbon(75887) |
Question 1048333: 
(tried to write this as simply (x^2 + 2)y'' + 3xy' - y = 0 but it would not let me use the apostrophe in the formula so had to re-write it , came out a bit ugly but i hope you understand it)
Find two linearly independent solutions around x=0.
Now I know this is a second order linear differential equation, but all the examples I can find usually write a question based on only constants, not variables.
e.g 3y'' + 2y' + y = 0
Since my question has x and y, how do I deal with that? :(
Click here to see answer by Edwin McCravy(20055)  |
Question 1049051: Write the equation in slope-intercept form. What are the slope and y-intercept?
-11x + 9y = -12
A. y = -11/9x + 4/3
slope: 11/9
y-intercept: 4/3
B. y = 11/9x - 4/3
slope: 11/9
y-intercept: 4/3
D. y = 11/9x - 4/3
slope: 11/9
y-intercept: -4/3
Click here to see answer by MathLover1(20849)  |
Question 1049063: you can split all the wood in a wood pile in 505 hours.your father can do it in 7 hours.you work for two hours together before you have to go to work and leave you father to finish the job himself.how many more hours will the job himself.how many more hours will it take your father to finish the job alone? round your answer to the nearest tenth of an hour
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 1050598: Comparing phone plans. Questions
Do those equations have a cross over point? Or in other words, is there a point where they are ever equal?
If we set up 1.59*T + 49.99 = 1*T + 39.99, what do we get for time?
If we get a negative number, what does that mean?
Click here to see answer by stanbon(75887) |
Question 1050566: Four friends bought a boat for $1200. Friend A paid half the sum of the amounts paid by the other 3 friends. Friend B paid one-third the sum paid by the other three. Friend C paid one-fourth the sum paid by the other three. Friend D paid the rest. How much did friend D pay?
Click here to see answer by josgarithmetic(39617) |
Question 1050566: Four friends bought a boat for $1200. Friend A paid half the sum of the amounts paid by the other 3 friends. Friend B paid one-third the sum paid by the other three. Friend C paid one-fourth the sum paid by the other three. Friend D paid the rest. How much did friend D pay?
Click here to see answer by ikleyn(52781) |
Question 1050566: Four friends bought a boat for $1200. Friend A paid half the sum of the amounts paid by the other 3 friends. Friend B paid one-third the sum paid by the other three. Friend C paid one-fourth the sum paid by the other three. Friend D paid the rest. How much did friend D pay?
Click here to see answer by MathTherapy(10552)  |
|
Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760
|
